Smacchiatore di COLOURLOCK

What leather cleaners can't handle, COLOURLOCK stain removers will

What are COLOURLOCK stain removers? Specialized removers from leather repair practice for stains that sit inside the leather rather than on it: An absorber paste draws stubborn grease out of the fiber, a controlled solvent removes denim dye transfer and color transfer, and the stain and wax remover dissolves wax and residue from care products. Made for pigmented smooth leather in cars and living spaces.

COLOURLOCK stain removers are the specialists for the moment when the leather cleaner has done a clean job but the stain remains. Deep-set grease on headrests and armrests, blue denim abrasion on light-colored seat bolsters, wax and residue from years of care: each of these types of stains gets its own product with the appropriate working principle — pulling out, dissolving, or loosening. Developed by the leather specialist that has been supplying repair professionals since 1995 and is now part of Koch-Chemie.

• Made for stains that sit inside the leather. A cleaner's surfactants work on the surface — but over time, grease, dye, and wax migrate into the finish and the fibers underneath. That is exactly where these stain removers come in: the formulas originate from the repair practice that the Lederzentrum has been supplying since 1995, retrieving what a cleaner leaves behind.
• From a 40 ml pen to a 10-liter container. COLOURLOCK "GLD Solvent" is available as a 40 ml pen for pinpoint correction of individual dye transfers and as a 1000 ml / 1-liter bottle for detailing; COLOURLOCK "Stain Remover" is also available in 10 liters for high-volume users. You buy the quantity your stain requires, not what the shelf dictates.
• Controlled action instead of aggressive chemicals. Every product works specifically on the spot: the paste dries and is brushed off; the solvent is dabbed on with a cloth rather than applied over a large area. You will notice this because: the stain disappears, but the surrounding area remains exactly as it was.

Practical tip from Detailing1: The most common mistake with leather stains is rubbing. We frequently receive photos of light-colored seat bolsters where someone tried to shrink a denim stain — instead, they used a microfiber cloth and pressure, rubbing away the pigment layer along with it. The result is that a blue haze becomes a dull, light spot that only a re-dye can save. Therefore: always test every remover first on a hidden area, such as the lower seat flank. Apply a few milliliters to a cloth, never directly to the leather, and work in short dabbing motions. It is better to have three controlled passes than one forceful one — the stain comes off in layers, while the color underneath remains.

A stain is dirt that has moved inward

The distinction determines the tool. Dirt lies on the surface and can be removed with water, surfactant, and patience. A stain has migrated deeper: dye sits in the finish — the pigmented top layer that lies on smooth leather like a paper-thin paint job — while grease and oils are stuck in the fiber structure underneath. This means for you: more cleaner, more foam, and more pressure won't change anything at this point because the problem lies below the level that a cleaner can reach.

How this happens is unspectacular, which is exactly why it is so common. Indigo from jeans transfers onto the seat bolster every time you get in due to friction and body heat. Skin oils and sunscreen migrate into headrests and armrests over months until a dark, greasy zone forms. Care products and waxes build up a film layer by layer. None of these processes are noticeable on the first day — and with every week a stain is allowed to sink in, a wiping case turns into a chemical case.

COLOURLOCK knows this escalation from its end. The brand was founded in 1995 at the Lederzentrum, which has been supplying detailers and saddlers with repair dyes and tools ever since — today under the umbrella of Koch-Chemie. The stain removers are the "middle link" in the assortment: they sit between cleaning and re-dyeing and exist to ensure as many cases as possible end before the dye line. Anyone who re-dyes daily knows exactly which stains can still be pulled and which cannot.

From the Detailing1 daily routine: The photos we receive regarding leather stains almost exclusively show light-colored leathers — beige, cognac, cream white. Not because dark seats stay cleaner, but because the same stain goes unnoticed there. If you drive a car with light-colored leather, a quick check of the seat bolster and headrest should be part of the same routine as the cleaning itself.

Grease, dye, and wax each require their own answer

Deep-set grease cannot be wiped away, only extracted. This is what the Grease Remover in the series is for: COLOURLOCK "Grease Absorber Paste" is applied opaquely to the dark grease zone and left there until it has dried completely. As it dries, the paste draws grease, oils, and softener residue out of the fiber and visibly changes color in the process — afterwards, it is simply brushed or vacuumed off.

Color transfer is a case for the Discoloration Remover: COLOURLOCK "GLD Solvent" dissolves the top layer of the finish in a controlled manner and picks up denim abrasion, dye transfer from belts and jackets, and old coating residue. For individual spots, it is available as a 40 ml pen — it is hard to treat a stain more precisely than that.

Wax and care product residues are dissolved by the Wax & Stain Remover: COLOURLOCK "Stain Remover" removes wax stains, grease films, and old care layers from the surface without leaving any residue, and it also serves as preparation if care, sealant, or a repair is to follow. Of the three, it is the mildest — and therefore often the right first attempt.

This categorization isn't an assortment whim, but a diagnostic aid. You can usually identify the stain type without a lab: grease darkens the area and feels smooth, color transfer brings foreign color with it, and wax and care films shine and smear when wiped over. Once you have determined the type, you grab the appropriate principle — and save yourself the trouble of trying every product on the shelf.

The paste pulls it out, the solvent dissolves it

The COLOURLOCK "Grease Absorber Paste" works with highly absorbent mineral components — in principle, a blotter in paste form. As it dries, the grease migrates via capillary action from the leather fiber into the paste because the absorbers bind it more strongly than the leather does itself. Meaning for you: no mechanics, no rubbing, no risk to the color layer — the chemistry works while you wait.

COLOURLOCK "GLD Solvent" takes the opposite approach. Its solvent formula specifically opens the finish and dissolves color and dirt particles, which can then be removed with a cloth without penetrating deep into the leather structure. Translation: you remove the discoloration in a controlled manner instead of rubbing it in. The side effect is intentional — the slightly opened surface accepts repair dye and sealant better afterwards, which is why GLD Solvent is the standard step before any color correction in leather repair.

The COLOURLOCK "Stain Remover" lies between both worlds. It dissolves waxes, grease films, and care residues from the surface without attacking the color layer — in cases where a mild leather cleaner is no longer effective and the aggressive dissolving action of GLD Solvent is not yet necessary. It fills exactly this gap: more thorough than cleaning, gentler than repair preparation.

The principles are not interchangeable. The absorber paste will not pull dye out of the finish, and a solvent will not pull deeply embedded grease out of the fiber. If it's grease, use paste. If it's foreign color, use GLD Solvent. If it's a film on the surface, use Stain Remover. These three sentences replace half a product consultation.

The leather cleaner always comes before the remover

Much of what looks like an embedded stain is actually a dirt film — and that can be removed with a suitable leather cleaner: mild for routine, strong for long-term buildup. Only after cleaning can you make a diagnosis: what remains afterward is truly a stain and deserves a specialist. Anyone who reverses this order treats dirt with stain chemistry and wonders about the result.

The process itself remains calm for all products: clean, let dry, test on a hidden area, then work specifically. Apply the paste opaquely and give it full time to dry. Apply the solvent sparingly to the cloth, dab in short strokes, check the intermediate result, and repeat if necessary. Afterward, neutralize the surface with the cleaner and give the leather some care — every remover removes part of the surface protection along with the stain, and the conditioner restores it.

In our experience, one pass of the paste is rarely enough for older grease zones — plan for two to three cycles with complete drying, preferably overnight. This is not a product failure, but the mechanism: each cycle pulls one layer of grease out of the fiber, and the spot lightens step by step. The same applies to GLD Solvent, but in smaller amounts — multiple sparse dabbing passes beat a wet one.

For the first time, calculate about half an hour for a single spot, including the test. That sounds like a lot for a stain — it is little compared to the alternative, because the next step after the stain removers is re-dyeing, and that costs an entire afternoon.

Not every stain can be saved without re-dyeing

The clearest boundary is the type of leather. All stain removers in the series belong on pigmented smooth leather — on the top layer, which is forgiving of errors. Open-pored aniline leather, nubuck, and suede soak up solvents and paste uncontrollably; there, you will get edges and dark halos instead of clean results. For these leathers, the way forward is the gentle path: the series' aniline and nubuck cleaner and, if in doubt, a professional saddler's shop.

We tested COLOURLOCK "GLD Solvent" on a sample of open-pored dyed leather: the discoloration went away — but the aniline dye went with it, leaving a light halo behind. That is exactly why testing on a hidden area is in every one of our answers, and exactly why dissolving the finish is a tool for coated leather and nothing else.

Even on the right leather, there are two honest limits. Dye that has been allowed to soak in for months can be visibly reduced with GLD Solvent but still cannot always be completely removed — in that case, the path ends at color freshening, and we prefer to say that beforehand rather than afterward. And the Grease Absorber Paste is not a cleaner for fresh stains: what happened yesterday is faster and more gently removed with a leather cleaner.

We strongly advise against home remedies from forums. Body lotion and milk-based creams add new grease to the problem; toothpaste and magic erasers polish off the pigment layer — in the short term, the spot looks better, but in the long term, you have turned a stain into paint damage on the leather. We see the results of such experiments regularly, and the correction then costs more time than any professional stain treatment.

Which remover fits your stain

The short form as a decision aid: If a dark, greasy zone remains on the headrest, armrest, or seat surface after cleaning, that is deep-set grease — use COLOURLOCK "Grease Absorber Paste". If the light seat bolster shows a blue haze or foreign color, that is color transfer — use COLOURLOCK "GLD Solvent" (available as a pen for individual spots). If the surface shines and smears from old care or wax layers, that is a film — use COLOURLOCK "Stain Remover".

If you cannot reliably determine the stain type, work up the ladder from mild to strong: first the leather cleaner, then the Stain Remover, and only lastly the specialist for grease or color. This way, you never treat more aggressively than necessary. And if you are standing in front of a stain that doesn't fit into any category: a photo sent to us is enough, and we will classify it before you reach for the wrong product.

Two neighboring cases reside one level up: superglue residue and thorough degreasing before re-dyeing are not stains in the strict sense and have their own products among the COLOURLOCK stain & special removers. You will also find this category there, embedded in the brand's complete range of problem solvers.

And the thought that carries this category: Almost every stain that ends up as a repair request with us was, weeks earlier, a job for a cloth and a dab. A young stain costs you ten minutes and a few milliliters — an old one costs you a re-dye. The best stain remover is therefore the one you use while the spot is still unnoticeable to everyone but you.