Koch-Chemie × COLOURLOCK COLOURLOCK "Stitch Covering Gel" protective gel for masking seams and logos during the dyeing process 20ml

COLOURLOCK Stitch Covering Gel — protective gel for masking seams during the dyeing process

What is COLOURLOCK Stitch Covering Gel for? — The gel protects seams, contrast stitching and light threads while you dye, and stops colour from bleeding into the seam or darkening it.

COLOURLOCK Stitch Covering Gel is a specialised protective gel that reliably masks seams, light threads and contrast stitching all through the dyeing process. Plenty of leather in the automotive, furniture and fashion world carries light or decorative stitching that shouldn't pick up any colour when you dye. The gel keeps dye out of the seam structure, so the clean, high-contrast stitch pattern stays fully intact.

• Protects seams while dyeing – Keeps leather dye out of the stitching threads.
• Ideal for contrast stitching – Preserves light stitching on dark leather.
• Fully controllable – Goes on precisely and comes off without a trace.

Protective-film technology & how it works

Stitch Covering Gel forms a temporary, flexible barrier over the seam. The gel body sits on the threads without running or affecting the surface, and blocks colour uptake for the whole dyeing process. Once applied, the gel dries slightly but stays elastic, so it lifts off easily after the dye or top-coat step. That keeps the threads clean, light and visually untouched – a make-or-break detail on high-end OEM interiors and designer leather goods.

Application, laydown & best-practice tips

Prep and clean the leather as usual. Then lay the Stitch Covering Gel down precisely on the seams with a brush, fine nozzle or spatula. A thin, even film is enough. After that you can dye, dab or spray as normal without any colour creeping into the seam. Once the dye has dried, gently rub or rinse the gel away – the seam comes back clean and in its original colour. Ideal for light stitching on dark seat bolsters, steering wheels, furniture edges, bags or shoes.

Results, uses & benefits

After the job the seams stay crisp, precise and unstained, while the leather surface takes the dye evenly all over. Stitch Covering Gel works on automotive leather, furniture covers, bags, shoes, equestrian gear and anywhere contrast stitching is part of the design. It's not a filler and not a dye — it's a temporary protective film that keeps the pro look of high-end leather work.

Common questions about COLOURLOCK Stitch Covering Gel

Can I use the gel on any seam?

Yes, on light, dark, thick and fine seams – it protects every common thread type.

How do I get the gel off again?

After dyeing, just rub it off gently or lift it with a slightly damp cloth.

Can the gel affect the colour?

No, it only acts as a barrier over the seam and doesn't change how the dye goes on.

Does it work with spray application too?

Yes, the protective film reliably blocks fine colour mist as well.

Does the seam stay soft after removal?

Yes, because the gel contains no hardening components.

Last updated: 07.12.2025 — Author: Daniel (Detailing1)