Koch-Chemie × COLOURLOCK COLOURLOCK "GLD Solvent" Strong Remover for Stubborn Discolouration on Smooth Leather 1000ml

COLOURLOCK GLD Solvent — Specialist Remover for Discolouration on Leather

What is COLOURLOCK GLD Solvent for? — This powerful cleaner breaks down stubborn discolouration, colour transfer and old coating residue on leather, so you can carry on working safely and in full control.

COLOURLOCK GLD Solvent is a high-strength specialist remover that loosens discolouration, colour transfer, old paint layers or tough residue on pigmented leather. It really earns its keep on dark denim rub marks, stubborn dye transfer, tacky surfaces or when you're prepping for a repair. It opens up the top layer in a controlled way and gets the leather perfectly ready for colour correction, repairs or fresh sealing.

• Strong loosening action – Lifts colour transfer, stubborn discolouration and coating residue.
• Perfect for repair prep – Makes the leather receptive to colour and filler.
• Controlled effect – Loosens without beating up the leather more than it needs to.

Solvent technology & how it works

GLD Solvent is built on a balanced, material-friendly solvent formula that loosens colour and dirt particles sitting in the top leather coating. That lets you lift problem discolouration without it digging deep into the leather structure. At the same time the surface opens up slightly, so fresh colour, filler or binder grips properly. The cleaner is ideal for automotive interiors, furniture leather, bags and any pigmented smooth leather carrying discolouration or transfer marks.

Application, how to lay it on & best practices

Before you start, the area should be clean and dry. Put GLD Solvent sparingly onto a cloth or pad and work it into the affected spot in a controlled way. Pick up the residue you've loosened, then neutralise the area afterwards. Depending on the discolouration you can go over it again. The key thing: work sparingly and don't rub more than you have to. Once you're done, build the leather back up with colour (Leather Fresh/leather dye) and seal it with a top coat.

Results, where to use it & limits

After treatment, stubborn discolouration, dye transfer and old coating residue are visibly reduced or gone for good. GLD Solvent works a treat on seat bolsters, steering wheels, furniture edges, bags and delicate interiors. It's not your everyday cleaner — it's a professional solvent for repair prep. With extreme damage or discolouration that's soaked in deep, a colour correction is usually unavoidable.

Common questions about COLOURLOCK GLD Solvent

Does GLD Solvent remove denim rub-off?

Yes, it's especially effective on dark dye transfer and stubborn discolouration.

Does it attack the colour?

It loosens the surface slightly – ideal for repairs, so keep it controlled.

Which leather types is it for?

For pigmented smooth leather; don't use it on aniline, nubuck or suede.

Can I dye straight after?

Yes, the opened surface is perfectly prepped for Leather Fresh or leather dye.

How do I use GLD Solvent safely?

Dose sparingly, work with a cloth, check as you go and don't overdo it.

Last updated: 10/12/2025 — Author: Daniel (Detailing1)