Gtechniq C4 - Permanent Trim Restorer Coating 15ml/30ml

  • Restores faded trim to as new
  • Dries optically clear, does not add sticky gloss
  • Up to two years of durable protection
  • For use on all exterior trim

Gtechniq C4 is not just your regular trim coating, it will bond to your trim restoring it to like new condition with ease! Most trim restorers or protectants are shiny coatings that sit on top of the plastic and they only provide temporary shine and colour restoration.

Gtechniq C4 actually swaps part of its molecular structure with the surface molecules of your car's trim. This allows the C4 to keep your trim looking brand new for up to two years! Use C4 on trim, weather stripping, plastic mirrors, battery covers, hoses, etc.


  • 1x C4 15ml or 30ml
  • 1x Pair of Nitrile Gloves
  • 1x AP2 Ultra Soft Foam Filled Applicator
  • 1x Master Instruction Leaflet
  • 1x WS1 Gtechniq Window Sticker


  • 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)
  • Work in a well ventilated area, at a temperature above 5°C and out of direct sunlight. Wear the gloves provided
  • Ensure the surface(s) you are going to coat are free from any contaminants. For best results clean trim with isopropyl alcohol, and if required use a medium stiff brush
  • Use the AP1 Lint-free Applicator supplied to spread the coating onto the surface of your trim. Soak the pad with several drops of product
  • Once you have spread the product over each piece of trim, gently wipe away residue immediately with a 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
  • Allow the coating to cure for 12 hours before exposing to the elements
  • Store in a cool, dry place
  • Use product within 3 months of opening

Customer Reviews

Based on 3 reviews
Christopher K.

Pretty Impressed with the results, Bought for my daily lancer that has some badly faded b pillars paint looks pretty thin so didn't want to wet sand and polish, pretty impressed with the results used around 10ml to do both sides of car door trims around windows, roof gutter moulding, windscreen moulding and wiper moulding I didn't mind the lint free pads but to supply only 4 for 30ml is crazy should have ordered some more to go with it lucky I have plenty of ceramic applicators that worked just fine but keep that in mind if you are ordering

not sure if photo will attach but this a side by side coated and not coated

Antony R.
Worth every penny.

I've tried most detailing products to turn my trims black again. But this one works perfect

David J.
Great product, poor applicator

Unbelievably good stuff. Worked very well and looks great after a few weeks still. Applicator left some threads stuck to the car trim though, which was a bit of a pain. They should have a cloth applicator, rather than what essentially is make up remover wipes.