Koch-Chemie × COLOURLOCK COLOURLOCK "Plastic Primer ND" primer for plastics 1000ml

COLOURLOCK Plastic Primer ND — bonding primer for plastic surfaces

What is COLOURLOCK Plastic Primer ND used for? — The primer improves how well paints, coatings and repair materials grip plastics, stabilises the surface and gives you even, long-lasting results on smart-repair and refurbishing jobs.

COLOURLOCK Plastic Primer ND is the pro-grade primer for any plastic surface that needs reliable adhesion before you paint or repair it. On interior parts like plastic trim, grab handles, consoles or boot components, plastics often grip poorly: plasticisers, slickness, micro-textures or silicone residue stop coatings from keying in cleanly. Plastic Primer ND lays down a solid, uniform bonding base and makes repairs noticeably more durable and visually more even — great for cars, furniture, motorhomes and plenty of plastic parts.

• Strong adhesion boost – The primer keys into different plastics and gives paint and repair products something to grab onto.
• Even surface stabilisation – Cuts down adhesion problems on smooth, slightly oily or lightly textured plastic surfaces.
• Pro base for refurbishing – A must before COLOURLOCK plastic paints or structural repairs.

Bonding technology & how it works on plastics

Plastic Primer ND contains purpose-built adhesion promoters that attach to polymer surfaces and raise their surface tension. Plastics like ABS, PVC or PP often have very smooth or slightly greasy surfaces that only take paint poorly. Once applied, the primer forms a micro-fine, transparent bonding matrix that later coatings can key into perfectly. The formula is built so it doesn't leave a thick layer but keeps the plastic's natural texture. That way paint systems cover more evenly and show fewer lifting or edge problems.

Prep, application & the perfect base for painting

Before you lay down Plastic Primer ND, clean and degrease the surface thoroughly, ideally with suitable cleaners or GLD/ Degreaser (link placeholder). Apply the primer thin and even — a fine film is enough. After a short flash-off time the part is ready for painting or a structural repair. Avoid layers that are too thick, as they tend to make adhesion worse. On high-wear areas like door handles, sill plates or centre-console surfaces the primer keeps later coatings more durable and more abrasion-resistant.

Results, uses & how it differs from leather primers

After you use Plastic Primer ND you get a much more adhesion-ready plastic surface where paint grips evenly and stays put. The result is cleaner repairs, less flaking and a visually harmonious surface. The primer suits all vehicle interior parts, boot linings, plastic housings, furniture surfaces and other components made from common plastics. It doesn't replace cleaning or a repair filler — it lays the base you need for COLOURLOCK plastic paints, structural fillers or flexible coatings. Unlike Leather Primer, Plastic Primer ND is tuned specifically for plastics and won't work on leather surfaces.

Common questions about COLOURLOCK Plastic Primer ND

Which plastics does the primer work on?

Most plastics common in cars and furniture — ABS, PVC, PP and textured interior parts.

Is the primer visible after application?

No. It dries transparent and leaves only an ultra-fine bonding film.

Do I need to degrease before the primer?

Yes. Residue like silicones or grease can seriously hurt adhesion.

Can I use the primer on leather too?

No. It's made purely for plastics. For leather, go with Leather Primer.

How long does the adhesion boost last?

Permanently. The bonding film stays stable and gives you a reliable base for every coating that follows.

Last updated: 02.12.2025 — Author: Daniel (Detailing1)