GTECHNIQ C4 Permanent Trim Restorer - 15ml/30ml – The Detail Store Skip to content

GTECHNIQ C4 Permanent Trim Restorer - 15ml/30ml

4.9
Rated 4.9 out of 5 stars
41 Reviews
Sale price $49.50 AUD

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The car plastic restorer is a nano composite coating restores trim to 'as new' condition without altering gloss level.

Strong UV absorption filter and chemical bond ensures maximum durability with a single application typically maintaining a flawless finish for up to two years.

C4 uses a covalent or chemical bond to actually become an extension of the plastic molecule it is protecting.

C4 actually swaps part of its molecular structure with the surface molecules of your car's trim to provide a protective coating of unparalleled durability.

Unlike many trim products on the market, 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. It is ideal for new trim, helping to prevent fading.

Features & Benefits:

  • Provides thin clear film - does not add sticky gloss
  • Restores all but the most faded trim to 'as new'
  • One application can last up to 2 years
  • Use on correctly prepared surfaces for maximum benefit
  • Restores trim to "as new" condition
  • For use on all exterior trim

Application Instructions:

  • Before you start, ensure that you have enough product for all of your trim. For example, if you have a Pajero (30ml) you would need more product than you would on a Golf (15ml)
  • Work in a well ventilated area, at a temperature above 5 degrees Celsius 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 a neat solution of W2 APC Universal Cleaner Concentrate 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.
  • 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

4.9
Rated 4.9 out of 5 stars
Based on 41 reviews
98%would recommend this product
ValueRated 4.4 on a scale of 1 to 5
Reviews Summary
Customers say this trim restorer brings faded plastic surfaces back to a like-new appearance with remarkable effectiveness. Many reviews mention how easily it applies to vehicle trim, bumpers, and other plastic components. The product delivers consistent results across various vehicle types, from cars to motorcycles. While some note the small bottle size relative to the price, users frequently highlight its efficient coverage. Reviews indicate the finish maintains its appearance through weather exposure, with several mentioning durability beyond typical products. A few users point out it may need multiple applications on heavily weathered areas.
41 reviews
  • Twann T. J.
    Verified Buyer
    I recommend this product
    Age Range 25-34
    State NSW
    Type of User Average Joe - Beginner
    Rated 5 out of 5 stars
    2 weeks ago
    Great product.

    Works really well. Recommended.

  • jeff b.
    Verified Buyer
    I recommend this product
    Age Range 65+
    State WA
    Type of User Weekend Warrior - Enthusiast
    Rated 5 out of 5 stars
    2 months ago
    C4 trim restorer

    Excellent product the beat on the market

  • Julie Margaret C.
    Verified Buyer
    I recommend this product
    Age Range 55-64
    State QLD
    Type of User Weekend Warrior - Enthusiast
    Rated 5 out of 5 stars
    2 months ago
    GTECHNIQ

    Amazon product will definitely buy again

  • Jasveer S.
    Verified Buyer
    I recommend this product
    Age Range 25-34
    State ACT
    Type of User Professional - Advanced
    Rated 5 out of 5 stars
    3 months ago
    Fully satisfied

    Very good product

  • Robert G.
    Verified Buyer
    I recommend this product
    Age Range 35-44
    State VIC
    Type of User Weekend Warrior - Enthusiast
    Rated 5 out of 5 stars
    5 months ago
    Amazing trim restorer – Like new again

    I used Gtechniq C4 Permanent Trim Restorer on my Land Rover Discovery, which has a lot of plastic trim, and the results were incredible! The faded plastic instantly regained its deep, factory-fresh look, and the finish has stayed that way even after weeks of rain and sun exposure. Unlike other products that only provide a temporary shine, this actually bonds to the plastic for long-lasting protection.

    Application was straightforward – a little goes a long way, and the included applicator made it easy to get an even coat. It dries quickly without any greasy residue, leaving a natural satin finish rather than an artificial gloss.

    If you have a vehicle with a lot of plastic trim, especially one that sees a mix of tough weather conditions, this is hands down the best trim restorer I've ever used. Definitely worth the investment!