{"title":"Alkalische Reiniger","description":null,"products":[{"product_id":"koch-chemie-cosmo-clean-cs-sicherheitsbodenreiniger-konzentrat","title":"Cosmo-Clean \"Cc\" Safety Floor Cleaner Concentrate","description":"\u003ch2\u003eCommercial floor cleaning with no compromise — with the Koch-Chemie Cosmo-Clean \"Cc\" Safety Floor Cleaner Concentrate\u003c\/h2\u003e\n\n\u003cblockquote\u003e\u003cem\u003eThe Koch-Chemie Cosmo-Clean \"Cc\" is a highly concentrated, mildly alkaline safety floor cleaner concentrate for workshop, industrial and building floors — low-foaming, NTA- and solvent-free, with a slip-resistant effect on floors that are still wet and gentle on existing floor sealants. Dilution rate 1:40 to 1:300 depending on how dirty the floor is.\u003c\/em\u003e\u003c\/blockquote\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHighly concentrated with a dilution rate of 1:40 to 1:300\u003c\/strong\u003e — goes a seriously long way; one 11 kg canister covers many hundreds of square metres of floor.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSlip-resistant on wet floors\u003c\/strong\u003e — far less slip risk on wet surfaces than you get with standard floor cleaners.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWon't attack floor sealants\u003c\/strong\u003e — the mildly alkaline formula is gentle on existing epoxy coatings and sealants.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat sets the Cosmo-Clean apart from ordinary floor cleaners\u003c\/h3\u003e\n\u003cp\u003eWorkshop and industrial floors take a beating: oils, lubricants, tyre rubber, brake dust and industrial residues build up into stubborn films that push everyday cleaners past their limit. The \u003cstrong\u003eKoch-Chemie Cosmo-Clean \"Cc\"\u003c\/strong\u003e was built for exactly this commercial-grade load. The mildly alkaline formulation cuts through grease, oil and dirt residue without harsh solvents — NTA-free and with no halogenated compounds. That's not just an eco win: solvent-free cleaners play far better with light-liquid separators, which is often a hard requirement in commercial workshops and industrial halls. The chosen mix of wash-active agents and phosphates still delivers outstanding cleaning power even at high dilution.\u003c\/p\u003e\n\n\u003ch3\u003eDilution ratios and where you'll use them day-to-day\u003c\/h3\u003e\n\u003cp\u003eThe Cosmo-Clean's strength is just how far you can dilute it: on lightly soiled office and admin floors you mix the concentrate 1:60 to 1:300 — a sparing dose that makes the 11 kg canister go even further. For heavily soiled workshop and industrial floors, Koch-Chemie recommends a 1:40 to 1:120 dilution for machine or manual cleaning. So you dial in the dose to match how dirty the floor is, no swapping products. Using it couldn't be simpler: lay the concentrate down on the surface, let it dwell depending on the dirt, then rinse off with a scrubber-drier, a steam jet or a pressure washer.\u003c\/p\u003e\n\n\u003ch3\u003eSafety aspects — what \"safety cleaner\" actually means\u003c\/h3\u003e\n\u003cp\u003eThe term \"safety floor cleaner\" isn't marketing fluff, it's a technical classification: the product is fast-separating to ÖNORM 5105 and therefore suited to wastewater systems with light-liquid separators. In a car workshop or industrial hall that's often a legal requirement — cleaners mustn't overload the oil separator with surfactant concentrates. The Cosmo-Clean meets those requirements. The slip-resistant effect is another safety factor: floors that are still wet are a real accident risk when you're working with other cleaners — the Cosmo-Clean cuts that risk right down thanks to its special formulation.\u003c\/p\u003e\n\n\u003cblockquote class=\"praxistipp\"\u003e\n  \u003cp\u003e\u003cstrong\u003eDetailing1's tip from the shop:\u003c\/strong\u003e For detailing shops, the Cosmo-Clean really shines for cleaning the floor after polishing work, once polishing dust has settled onto it. The low-foaming formula also makes it a great match for scrubber-driers — no foam overflow inside the machine. Mixing it up in a dosing sprayer makes it easier to lay down evenly across big areas.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\n\u003ch3\u003eCosmo-Clean vs. Green Star — when to reach for which?\u003c\/h3\u003e\n\u003cp\u003eAlongside the Cosmo-Clean, the Koch-Chemie range also offers the Green Star BMP as an all-purpose cleaner. The difference comes down to where you use them: the Cosmo-Clean is built specifically for floor cleaning — mildly alkaline, slip-resistant and gentle on floor sealants. The Green Star is a broader all-purpose cleaner — for vehicle surfaces, engines, wheels and floors, but without that specific slip-resistant property. If you only clean floors and have to meet safety requirements (ÖNORM, light-liquid separators), the Cosmo-Clean is the one to grab.\u003c\/p\u003e\n\n\u003ch3\u003eWho is the Koch-Chemie Cosmo-Clean the right pick for?\u003c\/h3\u003e\n\u003cp\u003eThe Cosmo-Clean is aimed at car workshops, dealerships, detailing businesses and industrial operations that regularly clean large floor areas and have to keep an eye on both cleaning power and legal wastewater requirements. The 11 kg container is built for regular commercial use. Its high dilutability makes the Cosmo-Clean more economical in the long run than cheaper cleaners with lower concentration.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003cdiv itemscope itemtype=\"https:\/\/schema.org\/FAQPage\"\u003e\n\n  \u003ch2\u003eFrequently asked questions about the Cosmo-Clean \"Cc\" safety floor cleaner\u003c\/h2\u003e\n\n  \u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n    \u003ch3 itemprop=\"name\"\u003eWhat is the Koch-Chemie Cosmo-Clean and what is it used for?\u003c\/h3\u003e\n    \u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n      \u003cp itemprop=\"text\"\u003eThe Koch-Chemie Cosmo-Clean is a highly concentrated, mildly alkaline safety floor cleaner for workshop, industrial and building floors. It cuts through oils, lubricants and stubborn industrial grime, is NTA- and solvent-free and fast-separating to ÖNORM 5105 — suited to systems with light-liquid separators.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n    \u003ch3 itemprop=\"name\"\u003eHow do you dilute the Cosmo-Clean correctly?\u003c\/h3\u003e\n    \u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n      \u003cp itemprop=\"text\"\u003eWorkshop and industrial floors: dilute the concentrate 1:40 to 1:120 and apply by hand or machine. Office and admin floors: dilute 1:60 to 1:300. Before using it for the first time on a new floor covering, check compatibility on a small spot.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n    \u003ch3 itemprop=\"name\"\u003eWill Cosmo-Clean attack floor sealants or epoxy coatings?\u003c\/h3\u003e\n    \u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n      \u003cp itemprop=\"text\"\u003eNo — the mildly alkaline formulation is gentle on most floor sealants and epoxy coatings. Even so, it's worth running a compatibility check on unfamiliar floor surfaces, since coating compositions can vary a lot.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n    \u003ch3 itemprop=\"name\"\u003eIs Cosmo-Clean suitable for light-liquid separators?\u003c\/h3\u003e\n    \u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n      \u003cp itemprop=\"text\"\u003eYes — Cosmo-Clean is fast-separating to ÖNORM 5105 and therefore suited to commercial systems with light-liquid separators. That's a common legal requirement for cleaners in car workshops and industrial halls.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n    \u003ch3 itemprop=\"name\"\u003eIs Cosmo-Clean worth it for smaller workshops too?\u003c\/h3\u003e\n    \u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n      \u003cp itemprop=\"text\"\u003eYes. With its high concentration and a dilution rate of up to 1:300, an 11 kg canister lasts a very long time even in smaller operations. The cost per square metre of cleaned floor is far lower than with low-concentration ready-to-use cleaners. For private users with no commercial wastewater requirements, though, the Cosmo-Clean is overkill.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Koch-Chemie","offers":[{"title":"11kg","offer_id":57635641393487,"sku":"D1-KCX-193011","price":48.99,"currency_code":"EUR","in_stock":true},{"title":"22kg","offer_id":57635641459023,"sku":"D1-KCX-193022","price":87.49,"currency_code":"EUR","in_stock":true},{"title":"235 kg","offer_id":57635623633231,"sku":"D1-KCX-193235","price":895.99,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/koch-chemie-cosmo-clean-cs-sicherheitsbodenreiniger-konzentrat_11kg.png?v=1714739947"},{"product_id":"koch-chemie-insect-dirt-remover-idr-insekten-schmutzentferner","title":"Insect \u0026 Dirt Remover \"Idr\" Insect \u0026 Dirt Remover","description":"\u003ch2\u003e\u003cstrong\u003eKoch-Chemie Insect \u0026amp; Dirt Remover „Idr” – The reliable insect \u0026amp; dirt remover\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eKoch-Chemie Insect \u0026amp; Dirt Remover\u003c\/strong\u003e is your go-to for shifting even the most stubborn bug splatter and grime from oil and road dirt. Its high-grade, clever formula soaks deep into the muck and lets you clean fast, thoroughly and without harming the paint. It works a treat on every exterior area of the car, plus the engine bay.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEffective cleaning\u003c\/strong\u003e – lifts even baked-on bug remains and oil deposits with no effort.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast to use\u003c\/strong\u003e – spray, let it dwell, rinse off – your car's spotless again in a couple of minutes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGentle on the surface\u003c\/strong\u003e – strong as it is, the cleaner stays kind to the paint and leaves no damage behind.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eWorks on loads of jobs\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eKoch-Chemie Insect \u0026amp; Dirt Remover\u003c\/strong\u003e isn't just for cars – it's just as good on motorbikes, motorhomes and anything else on wheels. In the warm months especially, the front of your car picks up a layer of bugs and road grime fast. With this cleaner you skip the hard scrubbing, because it cuts through the residue without touching the paint surface.\u003c\/p\u003e\n\u003ch3\u003eDead simple to use\u003c\/h3\u003e\n\u003cp\u003eUsing the \u003cstrong\u003eKoch-Chemie Insect \u0026amp; Dirt Remover\u003c\/strong\u003e couldn't be easier. You spray it on neat onto the dirty areas, let it dwell for one to three minutes, then rinse it off well. For really stubborn marks, you can help it along with a wash pad. After that, a wash with \u003cstrong\u003eNanoMagicShampoo\u003c\/strong\u003e gives you the perfect finish.\u003c\/p\u003e\n\u003ch3\u003eStrong cleaning power from an alkaline formula\u003c\/h3\u003e\n\u003cp\u003eThanks to its alkaline formula, the \u003cstrong\u003eInsect \u0026amp; Dirt Remover\u003c\/strong\u003e lifts even the toughest dirt particles. Oil and soot residue on bonnets, bumpers and windscreens is no longer a problem. Unlike weaker cleaners, this one grabs deep-seated grime too, so you don't need several passes.\u003c\/p\u003e","brand":"Koch-Chemie","offers":[{"title":"10kg","offer_id":48762428752207,"sku":"D1-KCX-77701010","price":92.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/koch-chemie-insect-dirt-remover-idr-insekten-schmutzentferner_10kg.png?v=1714922653"},{"product_id":"koch-chemie-mehrzweckreiniger-mzr-universalreiniger","title":"Multi-Purpose Cleaner \"Mzr\" All-Purpose Cleaner","description":"\u003ch2 id=\"speakable-headline\"\u003ePull oil, nicotine and grease out of the pores with Koch-Chemie Multi-Purpose Cleaner Mzr\u003c\/h2\u003e\n\n\u003cblockquote id=\"speakable-summary\"\u003e\n  \u003cp\u003e\u003cem\u003eWhat is Koch-Chemie Multi-Purpose Cleaner Mzr? An alkaline heavy-duty cleaner with pH 12.5 that breaks down oils, grease, nicotine, soot and grey ingrained dirt on fabric, plastics and industrial surfaces — a concentrate you dilute anywhere from 1:5 to 1:50. Keep it off soft-touch surfaces, leather and painted panels.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\n\u003chr\u003e\n\n\u003cp id=\"speakable-definition\"\u003e\u003cstrong\u003eKoch-Chemie Mzr\u003c\/strong\u003e is an alkaline cleaner concentrate from Koch-Chemie that chemically lifts stubborn organic dirt out of pores and fibres. The pH of 12.5 in the concentrate saponifies fats and oils through alkaline hydrolysis — something pH-neutral cleaners simply can't do chemically. Dilute it 1:10 and you sit around pH 11, which is plenty for most interior surfaces in the car. Koch-Chemie has it under an official Daimler approval, which is why detail shops and workshops keep it on the shelf as a default.\u003c\/p\u003e\n\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/d1_koch-chemie-mehrzweckreiniger-mzr-universalreiniger_hero.png?v=1776196784\" alt=\"Koch-Chemie Mzr 1L bottle next to the open door of a black Mercedes-AMG GT in the warehouse bay\" width=\"900\" loading=\"lazy\"\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDilute from 1:5 to 1:50 — one concentrate for any kind of dirt.\u003c\/strong\u003e For heavy jobs like motor oil or nicotine films you work at 1:5. For everyday interior cleaning 1:20 to 1:50 is plenty. One litre of concentrate at 1:20 makes 21 litres of working solution — at €7.67 a litre that's €0.37 per litre of ready-to-use cleaner.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCuts through what pH-neutral cleaners leave behind.\u003c\/strong\u003e Nicotine, greasy fingers on headliners, ingrained grey on light fabric seats — these are the jobs where the Mzr earns its keep. The alkaline formula saponifies fatty acids and emulsifies oil residue rather than just pushing them around the surface. Where a neutral \u003ca href=\"\/products\/koch-chemie-allround-surface-cleaner-asc-allzweckreiniger\"\u003eall-purpose cleaner\u003c\/a\u003e needs two passes, the Mzr does it in one.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDaimler approval for workshop use.\u003c\/strong\u003e The official approval confirms material compatibility on Mercedes-Benz factory fabrics and plastics. Detail shops, fleet managers and independent workshops keep it as their standard interior cleaner — one concentrate for the whole fleet instead of a shelf full of specialty bottles.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003cblockquote class=\"praxistipp\"\u003e\n  \u003cp\u003e\u003cstrong\u003eDetailing1's tip from the shop:\u003c\/strong\u003e Never spray the Mzr neat onto a surface — pH 12.5 in the concentrate attacks soft plastics and pigments. Always dilute in the bottle first and start at 1:10. If that does the job, dial down to 1:20 next time. The most common mistake we see day-to-day: people run the dilution too strong and end up with white patches on dark plastics because the alkalinity has attacked the surface. Two passes at 1:10 give you a better, more even result than one pass at 1:5.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003e1:10 on the headliner. 1:50 on the door handle.\u003c\/h3\u003e\n\u003cp\u003eKoch-Chemie Mzr works as a concentrate that you dilute fresh for every job. That sets it apart from ready-mixed \u003cstrong\u003einterior all-purpose cleaners\u003c\/strong\u003e like the \u003ca href=\"\/products\/koch-chemie-multi-interior-cleaner-innenraumreiniger-750ml\"\u003eKoch-Chemie MultiInteriorCleaner\u003c\/a\u003e, which come at a fixed strength you can't change.\u003c\/p\u003e\n\n\u003cp\u003eFor a nicotine-stained headliner or greyed fabric seats you work at 1:5 to 1:10. Spray it on evenly, let it dwell for 1–3 minutes, then work it in with a soft detailing brush in circles. The Mzr lifts the dirt chemically, the brush pulls it out of the fibres. After that you extract the dissolved soil with a clean microfibre or a wet vac. On headliners the wet vac is non-negotiable — too much standing moisture softens the textile glue and the headliner starts to sag.\u003c\/p\u003e\n\n\u003cp\u003eFor everyday interior cleaning — dash, centre console, door cards — 1:20 to 1:50 is enough. At that strength the Mzr is gentle enough for most hard plastics. The surface comes out clean and there's no greasy film left behind.\u003c\/p\u003e\n\n\u003cp\u003eRight after that you can lay down a plastic dressing — the Mzr leaves no residue that would block adhesion. That's what makes it the go-to prep step before any dressing. Still: on soft-touch steering wheels and rubberised grips even the weakest dilution is a gamble. Grab a pH-neutral cleaner for those.\u003c\/p\u003e\n\n\u003cp\u003eOutside the cabin the Mzr earns its name too: workshop floors with oil stains, grimy industrial machines, weathered motorhome trim. For outdoor use go 1:5 to 1:10 and let it dwell 3–5 minutes. Hit it with a pressure washer or a brush, then rinse off.\u003c\/p\u003e\n\n\u003cp\u003eOne detail Koch-Chemie doesn't flag on the product page: the Mzr leaves a subtle, clean scent on the surfaces it cleans. Not an artificial air freshener — just noticeably less chemical than comparable industrial cleaners. In a smoker's car it won't mask the nicotine smell, but after the clean the cabin smells neutral instead of like cleaning chemicals. Sounds like a side-effect, but in the bay it matters when you're prepping cars for resale or hand-back.\u003c\/p\u003e\n\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/d1_koch-chemie-mehrzweckreiniger-mzr-universalreiniger_anwendung.png?v=1776198150\" alt=\"Headliner cleaning with diluted Koch-Chemie Mzr from an iK Multi TR 1 spray bottle in a Mercedes-AMG GT\" width=\"900\" loading=\"lazy\"\u003e\n\n\u003ch3\u003eKoch-Chemie Mzr lifts nicotine films. Leather, it attacks.\u003c\/h3\u003e\n\u003cp\u003eOrganic dirt is the home turf of Koch-Chemie Mzr: greasy fingerprints, nicotine films, soot, ink stains and that typical grey ingrained look on light upholstery after two years of daily use. The alkaline formula handles those in one pass.\u003c\/p\u003e\n\n\u003cp\u003eThe colour shift from clean to dirty is instant on the Mzr — the microfibre after a wipe shows exactly what came out of the surface. Most dramatic on greyed light fabric seats: the first pass often pulls two shades of difference out. That's not a marketing line — it's the chemical effect of alkaline saponification breaking down the deep-set fat soiling that a neutral cleaner can't reach.\u003c\/p\u003e\n\n\u003cp\u003eKoch-Chemie positions the Mzr as an \u003cstrong\u003einterior all-purpose cleaner\u003c\/strong\u003e for cars, industry and building maintenance. The pack sizes tell you the same story: the 1-litre bottle sits next to 11 kg, 21 kg and 225 kg drums. This is a workshop cleaner that also works in the car interior. That origin is where the strength comes from — the Mzr is formulated for industrial grime, and that power follows it into the cabin.\u003c\/p\u003e\n\n\u003cp\u003eWhere the Mzr isn't the right tool: on genuine and synthetic leather with open-pore structure the alkalinity can dry out the surface and leave discolouration. Leather wants a pH-adjusted leather cleaner. On soft-touch plastics and rubberised surfaces like steering wheels or shift knobs it leaves dull patches. On painted or wrapped panels an alkaline cleaner has no business at all — even diluted 1:50, the pH still sits above 9. When you need an \u003ca href=\"\/collections\/universalreiniger\"\u003eall-purpose cleaner\u003c\/a\u003e with no risk for sensitive materials, the Koch-Chemie ASC is the safer pick — ready-mixed, pH-neutral, surface-agnostic.\u003c\/p\u003e\n\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/d1_koch-chemie-mehrzweckreiniger-mzr-universalreiniger_ergebnis.png?v=1776196797\" alt=\"Headliner before and after cleaning with Koch-Chemie Mzr – nicotine grey on the left, deep black alcantara on the right\" width=\"900\" loading=\"lazy\"\u003e\n\n\u003ch3\u003eOne drum of Koch-Chemie Mzr. 200 litres of working solution.\u003c\/h3\u003e\n\u003cp\u003eThe Koch-Chemie Mzr pays back on yield. One litre of concentrate at 1:20 dilution gives you 21 litres of ready-to-use cleaner — enough for 15–20 full interior cleans. At €7.67 a litre that works out to under €0.50 per car. If you detail regularly, grab the 11-kg drum: at €77.75 you're at €7.07 per kilo and around 200 litres of working solution at 1:20.\u003c\/p\u003e\n\n\u003cp\u003eThe Mzr is built for detailers, workshops and serious hobby detailers who want a concentrate over ready-mixed bottles. If you only clean the interior occasionally and don't want to mess with dilution, grab the MultiInteriorCleaner ready to use. If you want flexibility — stronger for a smoker's cabin, weaker for the weekly wipe-down — the Mzr is the cheaper bet.\u003c\/p\u003e\n\n\u003cp\u003eFor day-in, day-out workshop use we run a Koch-Chemie tap on the 11-kg drum: dose the concentrate into the bottle, top up with water, done. The 1-litre bottle is the one to keep for mobile work and the detailing kit. Store both frost-free between 5 and 30 °C; sealed concentrate keeps for 24 months. Use any diluted mix within four weeks.\u003c\/p\u003e\n\n\u003cp\u003eOne safety note to finish: the Mzr is classified as corrosive (H314) and carries the signal word \"Danger\". In the concentrate, always wear gloves and safety glasses. At normal working dilutions of 1:10 to 1:20 the risk drops a lot, but you still want to avoid prolonged skin contact. The safety data sheet is on the product page for download.\u003c\/p\u003e\n\n\u003cp\u003eBottom line: the Koch-Chemie Mzr isn't an everyday quick-wipe cleaner. It's a tool for jobs where you need to clean deep — smoker's cars, used-car prep, workshop floors, industrial machines. If those are your jobs and you're up for dilution and PPE, you get an \u003cstrong\u003einterior all-purpose cleaner\u003c\/strong\u003e that comes in at under €0.50 per car — hard to beat at that price.\u003c\/p\u003e\n\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/d1_koch-chemie-mehrzweckreiniger-mzr-universalreiniger_lineup.png?v=1776196804\" alt=\"Koch-Chemie Mzr 1 litre bottle and 11 kg drum on cobblestone in front of the warehouse with a Mercedes-AMG GT\" width=\"900\" loading=\"lazy\"\u003e","brand":"Koch-Chemie","offers":[{"title":"1000 ml \/ 1 liter","offer_id":48762462536015,"sku":"D1-KCX-86001","price":8.99,"currency_code":"EUR","in_stock":true},{"title":"2x 1000 mL","offer_id":49536037454159,"sku":"D1-KCX-86001_2","price":17.62,"currency_code":"EUR","in_stock":true},{"title":"3x 1000 mL","offer_id":49536037486927,"sku":"D1-KCX-86001_3","price":26.16,"currency_code":"EUR","in_stock":true},{"title":"11kg","offer_id":48762460307791,"sku":"D1-KCX-86011","price":79.49,"currency_code":"EUR","in_stock":true},{"title":"21kg","offer_id":49536024772943,"sku":"D1-KCX-86021","price":146.49,"currency_code":"EUR","in_stock":true},{"title":"225kg","offer_id":49536024805711,"sku":"D1-KCX-86225","price":1647.99,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/koch-chemie-mehrzweckreiniger-mzr-universalreiniger.png?v=1714922290"},{"product_id":"koch-chemie-vorreiniger-b-vb-vorreiniger","title":"Vorreiniger B \"Vb\" Pre-Cleaner","description":"\u003ch2 id=\"speakable-headline\"\u003eThe alkaline pre-wash with the Koch-Chemie Vorreiniger B\u003c\/h2\u003e\n\n\u003cblockquote id=\"speakable-summary\"\u003e\n  \u003cp\u003e\u003cem\u003eThe Koch-Chemie Vorreiniger B is a highly concentrated alkaline pre-cleaner at pH 13.1 for the touchless vehicle pre-wash. Phosphate-free, VDA-compliant in Class A and B, fast-separating to ÖNORM 5106 and packing corrosion inhibitors for anodised aluminium. Not a mild snow foam for active coatings — a workshop-grade alkaline cleaner for real dirt.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\n\u003chr\u003e\n\n\u003cp id=\"speakable-definition\"\u003e\u003cstrong\u003eKoch Chemie Vorreiniger B\u003c\/strong\u003e is a high-alkaline pre-cleaner concentrate from Koch-Chemie in Unna that chemically lifts insects, bird droppings, road grime and wheel soiling before the actual car wash. At pH 13.1, this pre-cleaner sits in the professional segment between a medium-strength foam pre-cleaner and an industrial alkaline cleaner. The mix of powerful chelating agents and special surfactants tackles organic and inorganic deposits at the same time — exactly what high-throughput wash tunnels and vehicle detailers need.\u003c\/p\u003e\n\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/d1_koch-chemie-vorreiniger-b-vb-vorreiniger_hero.jpg?v=1776198373\" alt=\"Koch-Chemie Vorreiniger B Vb in the Detailing1 warehouse\" loading=\"lazy\" style=\"width:100%;height:auto;display:block;margin:1.5em 0;\"\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003epH 13.1 pulls off insects and brake dust in one pass.\u003c\/strong\u003e The blend of chelating agents and special surfactants works on organic deposits like insect splatter and bird droppings as well as on inorganic wheel soiling at the same time. One product replaces two steps — and that saves time, water and product.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVDA-compliant in Class A and B.\u003c\/strong\u003e One of the few pre-cleaners with a double VDA rating: 1:300 with up to 5 minutes dwell time (Class A) or 1:30 with a maximum of 1 minute (Class B). Wash line and hand wash covered with a single product.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorrosion inhibitors for anodised aluminium.\u003c\/strong\u003e The inhibitors protect sensitive parts despite pH 13.1 — which matters for vehicles with visible aluminium components, alkali-resistant painted alloy wheels and chrome trim.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003cblockquote class=\"praxistipp\"\u003e\n  \u003cp\u003e\u003cstrong\u003eDetailing1's tip from the shop:\u003c\/strong\u003e Never lay the Vorreiniger B down on hot or sun-warmed surfaces. Above 30 degrees paint temperature the cleaner flashes off before the dwell time is up — leaving dull streaks that only come off with polish. Before you start, move the vehicle into the shade or rinse it down with cold water first. In full summer sun, reach for the milder Pre-Foam efficient instead, which is far more forgiving with its 1-minute maximum dwell time.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003e1:30 for insects. 1:300 for high pressure.\u003c\/h3\u003e\n\u003cp\u003eDilution depends on how dirty the vehicle is and how you apply it. 1:30 to 1:50 for the pre-wash, 1:3 to 1:10 for heavily soiled wheels, 1:300 for self-service high-pressure units.\u003c\/p\u003e\n\u003cp\u003eFor the touchless pre-wash with a foam lance you work at 1:30 to 1:50. One litre of concentrate at 1:50 gives you 51 litres of ready-to-use solution — enough for roughly 20 to 25 cars in standard exterior care.\u003c\/p\u003e\n\u003cp\u003eThe foam lance should run at 0.8 to 1.2 litres per minute flow so the foam consistency is right and the cleaner clings to vertical panels long enough to do its job. Apply the pre-cleaner from the bottom up onto the cold, pre-wetted vehicle — that way you avoid run marks on unevenly dried panels. After 5 minutes dwell time at most (VDA Class A), rinse off thoroughly with the pressure washer.\u003c\/p\u003e\n\u003cp\u003eIn self-service wash bays, 1:300 is enough — that's the high-volume dilution and it cuts product use noticeably over a full year. For wheel cleaning you work at 1:3 to 1:10, sprayed straight onto the cold dry wheel, left to dwell for 1 minute at most, then rinsed. Important: don't use it on hot brake discs or warm wheels. The heat speeds up the reaction in an uncontrolled way and raises the risk of dulling on painted alloy wheels.\u003c\/p\u003e\n\u003cp\u003eFor wash tunnels with conveyor lines you typically run 1:100 to 1:200. Dwell time in the tunnel is usually 30 to 60 seconds, which still keeps you safely inside the VDA-B limit of 1 minute. The higher dilution cuts foam volume at the spray arch but keeps enough cleaning power thanks to the high active-ingredient concentration. With high vehicle throughput it pays to switch to the 225 kg container — a better price per litre of concentrate.\u003c\/p\u003e\n\u003cp\u003eFor copolymer de-waxing — stripping old preservatives before a fresh sealant — 1:5 to 1:10 is the right dilution. The Koch Chemie Vorreiniger B reliably lifts polymerised wax layers. That's a step many other alkaline \u003ca href=\"\/collections\/vorreiniger\"\u003epre-cleaners\u003c\/a\u003e don't cover. After that the paint can go straight to a fresh \u003ca href=\"\/collections\/versiegelungen\"\u003esealant\u003c\/a\u003e — saving a separate de-waxing step with IPA or silicone remover.\u003c\/p\u003e\n\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/d1_koch-chemie-vorreiniger-b-vb-vorreiniger_anwendung.jpg?v=1776198374\" alt=\"Koch-Chemie Vorreiniger B applied with a foam lance in the warehouse\" loading=\"lazy\" style=\"width:100%;height:auto;display:block;margin:1.5em 0;\"\u003e\u003c\/p\u003e\n\n\u003ch3\u003eWhere the workshop-grade alkaline cleaner stops. No snow foam replacement.\u003c\/h3\u003e\n\u003cp\u003eThe Koch Chemie Vorreiniger B is not a mild foam pre-cleaner for coating-protected vehicles. pH 13.1 is workshop level — strong, uncompromising, but sensitive in use.\u003c\/p\u003e\n\u003cp\u003eIts strength is on heavily soiled vehicles with insect, bird-dropping and road residue after a long motorway run or after winter. It also works reliably on baked-on brake dust on steel wheels and on alkali-resistant painted alloy wheels. The foam is functional — not the show foam you get from classic snow-foam products, but a working foam that clings to vertical panels.\u003c\/p\u003e\n\u003cp\u003eNow the honest read on the limits. First, the Vorreiniger B is not friendly to active ceramic coatings. Used regularly on coating-protected vehicles it breaks the coating down faster than a pH-neutral pre-wash foam does. For vehicles with an active coating, the milder Pre-Foam efficient is the better call. Second, don't use it on polished aluminium or chrome surfaces — despite the corrosion inhibitors, pH 13.1 can dull untreated light metals. The inhibitors protect anodised alloy, not bare alloy.\u003c\/p\u003e\n\u003cp\u003eThird: it is not paint-surface gentle in the sense of a hand-wash chemistry. If you look after your new car with the two-bucket method and a mild car shampoo, you don't need a Vorreiniger B in the garage. Its job starts where hand washing no longer cuts it — on heavily soiled vehicles, commercial fleets, utility vehicles and construction machinery.\u003c\/p\u003e\n\u003cp\u003eProtective gear is a must, not optional. Nitrile gloves and safety glasses when mixing and applying. On skin contact, rinse straight away with plenty of water and remove residue with mild soap. Never leave the concentrate bottle open — the fumes from the alkaline cleaner irritate airways and mucous membranes on longer exposure. Close it well after use and store it frost-free and dark.\u003c\/p\u003e\n\u003cp\u003eThe material compatibility of the Vorreiniger B has clear limits. Allowed: steel, anodised aluminium, alkali-resistant painted surfaces, glass and standard automotive plastics. Not allowed: polished light metals, bare chrome surfaces, coloured anodised layers (risk of discolouration) and matt-painted surfaces without a protective film. When in doubt, test on an inconspicuous spot before the first application and watch it for 3 minutes — it costs little time and saves expensive damage.\u003c\/p\u003e\n\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/d1_koch-chemie-vorreiniger-b-vb-vorreiniger_ergebnis.jpg?v=1776199899\" alt=\"Koch-Chemie Vorreiniger B workshop-grade alkaline cleaner pH 13.1\" loading=\"lazy\" style=\"width:100%;height:auto;display:block;margin:1.5em 0;\"\u003e\u003c\/p\u003e\n\n\u003ch3\u003eWho the Vorreiniger B is for — from the pro to the home garage\u003c\/h3\u003e\n\u003cp\u003eThe Koch Chemie Vorreiniger B is built for pros and experienced home users with know-how in alkaline chemistry. For beginners without protective gear and experience it's not the right choice.\u003c\/p\u003e\n\u003cp\u003eFor wash lines, vehicle detailers, workshops and self-service bay operators it's a standard tool. The 22 kg and 225 kg containers cover commercial demand. The 5 kg, 11 kg and 1 litre versions are aimed at single users, smaller workshops and experienced private buyers with their own high-pressure kit.\u003c\/p\u003e\n\u003cp\u003eThe 1-litre container is the right way in to test the product and the dilution on your own vehicle before moving up to larger quantities. The first time you mix it, work with a calibrated measuring jug — go by eye and most beginners land far too concentrated, which loads the material needlessly and encourages streaking.\u003c\/p\u003e\n\u003cp\u003eIf you want a mild, coating-friendly pre-wash foam, you're better off with the Pre-Foam efficient. If you supply express wash lines with extremely short dwell times, reach for the Pre-Wash B. If you need the strongest cleaner for baked-on oil and grease residue on engines and chassis, take the Copo Star BMP-T. The Vorreiniger B is the all-round middle of the \u003ca href=\"\/collections\/koch-chemie\"\u003eKoch-Chemie range\u003c\/a\u003e — phosphate-free, double VDA-compliant, fast-separating to ÖNORM 5106 and therefore also approved for biological process-water treatment systems.\u003c\/p\u003e\n\u003cp\u003eAnd that last point is the real Detailing1 insight. Workshops with an oil separator have a chronic problem with alkaline pre-cleaners. Many products form stable emulsions that overload the separator or tip the wastewater limits.\u003c\/p\u003e\n\u003cp\u003eThe Vorreiniger B is tested as fast-separating to ÖNORM 5106. The emulsion breaks down again in the separator within the standard conditions, and oil and water split cleanly. If you work in a commercial setting and have to keep an eye on your wastewater requirements, the Koch Chemie Vorreiniger B gives you an alkaline chemistry that won't become a problem at the plant — a detail neither the product page nor competitor copy bothers to mention.\u003c\/p\u003e\n\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/d1_koch-chemie-vorreiniger-b-vb-vorreiniger_lineup.jpg?v=1776198373\" alt=\"Koch-Chemie Vorreiniger B Vb full range from 1 litre to 225 kg\" loading=\"lazy\" style=\"width:100%;height:auto;display:block;margin:1.5em 0;\"\u003e\u003c\/p\u003e\n","brand":"Koch-Chemie","offers":[{"title":"1000ml","offer_id":49515037360463,"sku":"D1-KCX-283001","price":6.99,"currency_code":"EUR","in_stock":true},{"title":"2x 1000 mL","offer_id":49725492592975,"sku":"D1-KCX-283001_2","price":13.7,"currency_code":"EUR","in_stock":true},{"title":"3x 1000 mL","offer_id":49725492625743,"sku":"D1-KCX-283001_3","price":20.34,"currency_code":"EUR","in_stock":true},{"title":"5kg","offer_id":48762940162383,"sku":"D1-KCX-283005","price":22.99,"currency_code":"EUR","in_stock":true},{"title":"11kg","offer_id":48762938851663,"sku":"D1-KCX-283011","price":47.49,"currency_code":"EUR","in_stock":true},{"title":"22kg","offer_id":49603231646031,"sku":"D1-KCX-283022","price":88.49,"currency_code":"EUR","in_stock":true},{"title":"225kg","offer_id":49603231678799,"sku":"D1-KCX-283225","price":972.99,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/koch-chemie-vorreiniger-b-vb-vorreiniger.png?v=1727529718"}],"url":"https:\/\/detailing1.co\/collections\/koch-chemie-ratgeber-alkalische-reiniger.oembed","provider":"Detailing1","version":"1.0","type":"link"}