Koch-Chemie × THE FINISHER THE FINISHER "LeatherLock" Leather Care 500ml

THE FINISHER × Koch-Chemie "LeatherLock" — leather care with a satin-matte OEM finish

What do I use LeatherLock for? — This leather care conditions coated smooth leather after cleaning, brings back colour depth, keeps the natural feel without that greasy sheen, and makes the surface easier to look after – ideal for seats, the steering wheel rim and door panels.

THE FINISHER LeatherLock leather care is the targeted care step for modern, coated vehicle leather. The fine polymer emulsion lays down evenly, feeds the material visually, cuts down dry-out and keeps that grippy-dry OEM feel. After cleaning with InsideUp or the stain-focused LeatherTexClean, LeatherLock gives you a calm, rich finish with no smearing and no cranked-up gloss – exactly right for contemporary interiors.

• Satin-matte OEM finish: revives colour depth without greasy reflections; the surface stays dry and grippy for seat bolsters and touch areas.
• Easy care & balanced: the thin-film emulsion conditions evenly and cuts visible dry-out, without clogging up the leather grain.
• System-clean: apply to cleaned leather; works hand in hand with InsideUp/LeatherTexClean as prep and keeps the next interior clean noticeably easier.

Leather care – technology, finish & understanding the material

Leather care on coated smooth leather works when the care does its job in the top layer, not down in the pores. THE FINISHER LeatherLock leather care uses a finely balanced polymer emulsion that forms a thin, even film after a short flash-off. That film smooths the micro-roughness, freshens up the visual saturation and keeps the dry, slip-free feel of modern automotive leather. No grease layer, no gloss build-up: the result looks factory-fresh. The care isn't suited to open-pore aniline or nubuck/suede – those lack the protective top coat our product is built for. The basis of any care stays clean prep: pull the day-to-day film off with InsideUp, lift pigment and grease stains with LeatherTexClean, and only then condition.

In-car application – cleaning, applying, buffing off

Application runs controlled and thin. Get the leather dust-free and clean, then put a few squirts of THE FINISHER LeatherLock leather care onto a soft applicator pad or microfibre cloth. Spread it evenly in small sections, let it flash off for 1–2 minutes, then wipe back gently with a clean side of the cloth until the surface looks calm and streak-free. Seat bolsters, side supports and high-touch zones do better with two very thin passes than one heavy one. Go sparingly on the steering wheel rim to keep the grip; keep it off the pedals, and Alcantara is a no-go. Avoid direct sun and hot surfaces – the care should set, not dry on.

Result & routine – feel, colour depth, durability

The result is a rich, satin-matte leather look that feels natural and picks up dirt more slowly. Day to day, wiping fingerprints and dust off with a slightly damp cloth is enough; deeper cleans go easier after the care, because grime grips less well. A sensible routine: clean the interior, treat the specific leather spots with LeatherTexClean, then lay LeatherLock down thin and wipe back. With normal use you re-apply every 6–10 weeks; high-mileage drivers shorten the intervals, show cars can go longer. That keeps the balance of colour depth, grip and easy care steady – with no layer build-up or greasy look.

Common questions about THE FINISHER × Koch-Chemie "LeatherLock" — leather care

Which types of leather is LeatherLock suitable for?

For coated/sealed automotive smooth leather. Not for aniline, nubuck or suede. Test in a hidden spot first and only apply to clean leather.

Does the leather end up shiny after care?

No. LeatherLock deliberately aims for a satin-matte, OEM-like finish with a dry, grippy feel – no greasy film.

How often should I apply it?

Depending on use, every 6–10 weeks. Sooner on heavily used seat bolsters, less often on garage/show cars.

Can LeatherLock "repair" cracks or wear?

No. It cares for and stabilises the look, but doesn't fix structural damage. Cracks need professional restoration/leather repair.

How do I prep best?

First InsideUp for the day-to-day film, and LeatherTexClean for denim transfer or grease. Then lay LeatherLock down very thin and buff it off cleanly.

Last updated: 31.10.2025 — Author: Daniel (Detailing1)