Gtechniq C4 Trim Restorer 15ml – Permanent Plastic & Rubber Renew, UV Weather Protection, Natural Matte Finish

Gtechniq C4 Permanent Trim Restorer is a 15ml molecular coating that renews faded plastic and rubber trim and provides durable UV and weather protection without producing an artificial high gloss.

Designed for vehicle exterior plastics, Gtechniq C4 uses a chemistry-driven bonding process to refresh colour, restore texture and shield trim from the elements. The product is applied sparingly and forms an ultra-thin, long-lasting layer that resists rain, sun and everyday wear while maintaining a natural matte finish. A small bottle treats multiple pieces of trim, making it practical for bumpers, mirror housings, side mouldings and other faded components.

How does C4 actually restore faded trim?

C4 reforms the surface by chemically interacting with the plastic or rubber rather than sitting on top like a wax. This creates a bonded layer that evens out colour and renews the original look and feel of the substrate. The result is a refreshed appearance that behaves like the original material instead of appearing overly shiny.

• Swaps part of its molecular structure with surface molecules for stable adhesion
• Recolours and evens out weathered and sun‑bleached finishes
• Preserves original texture and avoids an artificial high-gloss look

How long does the protection last and what conditions does it resist?

C4 is formulated to deliver multi-year durability under normal use, offering reliable resistance to sunlight and moisture. While longevity depends on exposure and maintenance, the coating is engineered to withstand rain, UV exposure and routine cleaning without rapid breakdown. Reapplication may be needed over time for heavily exposed vehicles.

• Engineered for extended weather and UV resistance
• Holds up to washing and light abrasion better than topical dressings
• Performance influenced by climate, parking habits and cleaning routines

How do I apply Gtechniq C4 for the best result?

Application is straightforward but benefits from prep and a light, controlled touch. Clean the trim thoroughly, remove contamination and ensure the surface is dry. Apply a minimal amount using the applicator, spread evenly, allow to cure according to instructions, and wipe off any excess for a uniform finish.

• Clean and degrease trim before application for optimal bonding
• Use small quantities—the 15ml bottle treats multiple pieces
• Follow cure time recommendations and remove excess to avoid streaks

Will C4 change the trim’s look or feel?

C4 is intended to restore appearance while retaining the original surface character. It does not create an exaggerated shine; instead, it delivers a subtle, factory‑like renewal that looks natural. The tactile feel remains close to the untreated material but with improved visual depth and uniformity.

• Maintains matte or satin appearance rather than creating a glossy finish
• Restores colour depth and conceals uneven fading
• Preserves original texture and grip of rubber and plastic trims

Who is this for? Gtechniq C4 Permanent Trim Restorer is suited to car enthusiasts, detailing professionals and everyday drivers who want a long‑lasting, low‑gloss renewal for faded exterior trim. It’s a compact, efficient solution for restoring bumpers, mirror housings, side cladding and other weathered plastic or rubber parts without masking the original finish. If you value durable protection, minimal maintenance and a natural look, C4 is built to deliver professional-grade results from a small bottle.