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Gtechniq C4 Permanent Trim Restorer


Key Features

Adds ProtectionYes(UV Absorbers)
Durability24 Months (Up T0)
Shine Level4/10(Single Coat)


Gtechniq C4 utilises a chemical bond to become an extension of the plastic molecule it is protecting. The coating swaps part of its molecular structure with the surface molecules of your car’s trim. This means that you have a protective coating of unparalleled durability.

Unlike many trim products on the market, Gtechniq C4 is exceptionally thin (circa 30 nanometers) optically clear film – this means it will not add an unattractive gloss finish to the surface. Instead, it restores all, but the most faded trim to an ‘as new’ condition. Gtechniq C4 is ideal for new trim, helping to prevent fading.


More Information
Adds Protection Yes
Chemical Basis Silica-based
Contains UV Absorbers Yes
Darkening Effect Yes
Durability Up to 24 Months
Layerable No
Shine Level
Size 15ml or 30 ml Kit
Suitable For Plastic and vinyl surfaces

How To Use

(i) Make sure before you start you have enough product for all of your trim. For example, if you have a Mini (30ml) you would need more product than you would on a Golf (15ml).

(ii) Work in a well ventilated area, at a temperature above 5 degrees celcius and out of direct sunlight. Wear the gloves provided.

(iii) Ensure the surface(s) you are going to coat are free from any contaminants. For best results clean trim with a neat solution of W5 Citrus All Purpose Cleaner, and if required use a medium stiff brush.

(iv)Use the AP1 Lint-free Applicator supplied to spread the Gtechniq C4 coating onto the surface of your trim. Soak the pad with several drops of product.

(v) Once you have spread the product over each piece of trim, gently wipe away residue immediately with an MF1 ZeroR Microfibre Buff Cloth. If your car has heavily textured trim take time to ensure all crevices are covered, and that all residue is also removed from them.

(vi) Allow the coating to cure for 12 hours before exposing to the elements.

Use within 3 months of opening. Store in a cool, dry place.