Koch-Chemie × COLOURLOCK COLOURLOCK "Leather Fixative" colour fixative that stops dye bleeding when you wash leather 100ml

Reliable colour fixing for washable leather with COLOURLOCK Leather Fixative

What is COLOURLOCK Leather Fixative for? — It locks down loose dyes in aniline, nubuck and pigmented leather, stops bleeding when you wash or clean, and keeps the colour where it belongs.

COLOURLOCK Leather Fixative is the pro answer when you want to keep dyes in leather firmly under control. On washable leather in particular – think car parts, bags, seat covers or fashion pieces – the fixative stops excess pigment from bleeding out when you wash or clean. The formula comes straight from COLOURLOCK's leather know-how: it locks down dyes that have started to move, stops unwanted migration and gives you an even, settled result – a must on delicate leathers like aniline, nubuck and semi-aniline automotive hides.

• Reliably stops bleeding – the fixative technology binds loose dyes so they can't lift off in the wash or transfer onto nearby materials.
• Works on any washable leather – great for cars, furniture, fashion and accessories; per Koch-Chemie it suits any leather where colour stability matters.
• Settles the surface – once treated, the leather sits more colour-stable, which makes later cleaning or care steps safer and more even.

Fixing technology & how it works on bleeding leather

Leather Fixative uses a dedicated fixing agent that latches onto loose dyes that aren't fully bound in. That matters most on open-pore or delicate leather, where the dyes don't sit as tight as they do in modern pigmented automotive hides. The binding matrix in the fixative locks those particles down so they don't lift the moment they meet water or a cleaner. Per Koch-Chemie, the formula guards above all against the wash-out you get with leather clothing, motorcycle gear or washable interior parts. At the same time the natural feel of the leather stays put, because the fixing happens inside the top layer and leaves no visible film.

Prep, how to use it & a wash-safe workflow

Before you reach for Leather Fixative, the leather should be free of heavy dirt. You use the fixative either as a pre-treatment ahead of a leather wash or as a stand-alone fix. Lay it down evenly across the surface, let it sit briefly, then work it in gently so the loose dyes get bound. After that comes the wash, or a gentle next step, depending on the job. The key is not to overdose – a thin, even film is plenty. On heavily bleeding leather it's worth a quick re-check on colour stability afterwards. Once it's fixed, the material is far easier to care for and clean later without bleeding all over again.

Results, where to use it & the payoff in detail

After use the colour holds much better, especially when wet. The leather sits calmer, more even and safer to keep working on. For car detailers, Leather Fixative is ideal when colour-heavy interior parts might rub off during cleaning. In fashion it stops jackets, bags or shoes from running in the wash or in high humidity. Furniture and classic-car leather benefit too, since colour migration is a common headache there. The fixative is no substitute for a colour refresh or repair, though; all it does is lock down the pigment that's already there and stop it from moving.

Common questions about COLOURLOCK Leather Fixative

Which types of leather is the colour fixative suited to?

Pretty much all of them: aniline, nubuck, pigmented leather plus washable fashion and upholstery leather. It's especially effective on bleeding or delicate surfaces.

Does the fixative change the leather colour?

No. It only locks down loose dyes – it doesn't change the shade or the surface of the leather.

Can I wash or clean as normal afterwards?

Yes. The fixative is built to make washing or cleaning safer by stabilising the colour particles first.

Do I have to rinse the product off after fixing?

Only if a leather wash follows. For a plain fix with no wash, letting it dry evenly is enough.

Does the fixative also help against colour rubbing off onto clothing?

Yes, it cuts the risk right down by holding the dye migration in check. On heavily bleeding leather a second pass can make sense.

Last updated: 02.12.2025 — Author: Daniel (Detailing1)