Gtechniq C4 Permanent Trim Restorer

Bring your faded trim back to life – for the long haul

What is C4 Trim Restorer?

If your car’s plastic trim has gone dull, grey and chalky from UV exposure, road grime or constant washes, C4 is the solution. This isn’t just a “dress up” job. Gtechniq’s C4 forms a chemical bond with your exterior trim (plastic, vinyl, rubber) – becoming part of the surface, not just sitting on top. The result? Trim that looks “as new” again and stays like that.

Key Features & Benefits

Benefit	Why It Matters
Long-lasting protection (up to 2 years)	You’ll spend less time redoing your trim; fewer re-applications.
Natural finish, no grease or shine	Keeps the original texture; avoids slippery or overly glossy trim that attracts dirt.
Works on most exterior trim types	Door handles, bumpers, textured plastics & rubber, etc.
Durable chemistry	The coating “swaps part of its molecular structure” with the plastic – that gives C4 its lasting performance.

How to Use / Application Guide

To get the best results out of C4, follow these steps:

Prep properly
Clean the trim thoroughly—remove old dressings, grime or oils. If needed, use a citrus-based all-purpose cleaner and scrub with a medium stiff brush. The surface must be dry and contaminant-free.
Ideal conditions
Apply when temperature is above ~5 °C, on a cool surface, and out of direct sunlight. Ventilate if indoors. Wear gloves.
Application
Use a lint-free applicator pad; dampen it with a few drops of C4 and spread evenly over the trim. For very textured trim, take your time to get into the crevices.
Remove excess
Immediately after applying a section, buff off any residue using a quality microfibre cloth. If residue is left in deep textures, it may turn powdery.
Cure time
Allow around 12 hours for the coating to cure before exposing to water or harsh conditions.
Storage & usage tips
- Use within three months after opening.
- Store in a cool, dry place away from direct sunlight.
- Choose the right size: a small car or trim set needs less product; large areas (bumpers, side skirts) need more.

Why Choose This Over Other Trim Dressings

Most trim dressings wash off quickly or leave oily, unnatural surfaces. C4 gives a natural, semi-matte finish that resists fading and doesn’t attract dirt.
It’s built for durability: you should get up to two years’ protection with a single application.
Because it forms a chemical / molecular bond, it outperforms typical “spray on, dressings” in both finish and longevity.

Specifications & Packaging

Available sizes: 15 ml and 30 ml bottles.
Suitable for all exterior trim: plastic, rubber, vinyl.
Up to 2 years of protection when applied correctly.

Who It’s For

Car owners whose trim has faded or turned grey and want to restore it.
Detailers who want a long-lasting, premium trim restorer with a natural look.
Anyone wanting to protect new trim, keeping it looking fresh without repeated upkeep.

Make that grey vanish. Grab your Gtechniq C4 Permanent Trim Restorer today and enjoy trim that looks factory-fresh, stays that way, and speaks quality.

FAQs – Gtechniq C4 Permanent Trim Restorer

How long does Gtechniq C4 last on trim?
When applied correctly, Gtechniq C4 can protect and restore exterior plastic trim for up to 2 years. Unlike standard trim dressings, it chemically bonds to the surface, making it far more durable.

Is Gtechniq C4 better than other trim restorers?
Yes — most trim products are temporary and wash off quickly. Gtechniq C4 is a permanent plastic trim restorer, designed to give a natural finish and long-lasting protection with fewer reapplications.

Can I use Gtechniq C4 on any trim?
C4 is safe to use on most exterior plastics, vinyl, and rubber trim, such as bumpers, door handles, and mirror surrounds. It restores colour while protecting against UV damage and fading.

What’s the best way to restore faded black car trim?
The best method is to deep clean the trim, remove any old dressings, and then apply Gtechniq C4. It penetrates the surface, revives faded black plastic, and locks in protection against weathering.

Do I need special tools to apply C4?
No — you only need a lint-free applicator pad and quality microfibre cloths. Prep is key: make sure the surface is clean, dry, and free from oils before applying for the best results.

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