Preserve and protect
Gtechniq C4 Ceramic Trim Restoration
C4 bonds to properly prepared exterior trim and leaves an optically clear ceramic film. That matters on gray plastic. We can restore depth without turning the material black or hiding its original tone.
Where C4 shines
We have used it on extremely faded trim with excellent results, especially gray surfaces. It also makes sense on newer trim when the goal is to resist UV exposure and slow future fading.
How we give it the best chance
Old dressings and silicone interfere with bonding. We clean until the surface is free of residue, confirm it is completely dry, apply C4 evenly, and protect it from water during the 12-hour cure.