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✨ Nano-tech trim revival that lasts – because your car deserves the best! 🚗
Gtechniq C4 Permanent Trim Restorer is a premium 30ml liquid ceramic coating designed to chemically bond with plastic and rubber car trims, restoring their original black color and protecting them from UV damage and weathering for up to 2 years. Developed using advanced molecular nanotechnology, it offers superior durability without leaving any glossy residue, requiring only a small amount per application. Trusted globally and favored by high-end vehicle owners, it delivers professional-grade results with easy DIY application.












| ASIN | B00IOMDVWA |
| Best Sellers Rank | 465 in Automotive ( See Top 100 in Automotive ) 9 in Plastic & Rubber Care |
| Brand | Gtechniq |
| Brand Name | Gtechniq |
| Customer Reviews | 4.5 out of 5 stars 2,374 Reviews |
| Global Trade Identification Number | 00850006077809 |
| Included Components | C4 |
| Item Form | Liquid |
| Item Type Name | Gtechniq C4 Permanent Trim Restorer 30ml |
| Item Weight | 0.2 Pounds |
| Item form | Liquid |
| Item weight | 0.2 Pounds |
| Manufacturer | Gtechniq |
| Model Number | C4 |
| Number of Items | 1 |
| Number of items | 1 |
| Part Number | C4 30ml |
| Product Warranty | Product must be registered on Gtechniq website |
| Recommended Uses For Product | restoring and protecting car trim |
| Recommended uses for product | restoring and protecting car trim |
| Specific Uses For Product | Ceramic coating for plastic trim on cars, trucks, and boats |
| Specific uses for product | Ceramic coating for plastic trim on cars, trucks, and boats |
| UPC | 850006077809 |
| Unit Count | 30.0 millilitre |
J**T
Amazing stuff , seems expensive but very much worth it.
This stuff is amazing - a tiny amount on a pad and rub it into the trim and it turns it instantly back to a really nice black, buff with a cloth and its done , and no sticky residue either which seemed to be a problem with some other similar products. The black plastic trim / rubber door seals etc.. on my 09 Civic were mostly very grey and looked terrible but a few minutes with this product and it looks almost like new - the trim and rubber seals are all a really nice smooth black again and so far I see no signs of any residue or blotches or any other issues - it's only been a couple of days so far so time will tell if it lasts or if any issues arise, but so far it has transformed the appearance of the car and I am very pleased indeed. Yes it's expensive but it only required a tiny amount for all the plastic on my car, the bottle is still almost full. Assuming the color lasts and no issues appear then it was very much worth the money. If any issues develop then i'll adjust my review accordingly.
T**D
Genuine review - Revitalize Faded Black Trim
Gtechniq's trim restoration product is an exceptional solution for anyone seeking to restore the look of their faded black car trim. The coating's innovative molecular bonding technology guarantees unparalleled durability, providing protection against rain and UV damage. The product's ability to restore the color, look, and feel of all car trim makes it an excellent value for money, as only a small amount is needed to revitalize bumpers, wing mirrors, side trim, and any other faded plastic pieces of trim. Additionally, the product is easy to apply and has a great value. Gtechniq, the world leader in molecular nanotechnology, developed the product. Founded by a quantum physicist in 2001, Gtechniq's products are unique and utilize innovative, advanced technology to achieve a level of performance that outclasses any others on the market. The company has been the number one choice of high-end vehicles for over 20 years and is passionate about the quality of its products and the stellar service it provides. It's worth noting that if excess product residues are not removed, white markings may appear. However, this is easily remedied by using Gtechniq's W2 Multi-Purpose Cleaner and a soft-bristle brush to agitate the affected area. The coating will then need to be reapplied. In conclusion, Gtechniq's trim restoration product is an excellent solution for anyone seeking to restore the faded black trim of their car. The product's exceptional molecular bonding technology, ease of application, and great value make it an excellent choice. Gtechniq's reputation as a global company with a 100% customer satisfaction rate further reinforces the quality of their products and service.
D**1
This is good stuff for faded black bumpers
I have an old campervan and the bumpers and black panels were looking really dull, grey and washed out. I tried all sorts of other products and nothing really worked particularly well or lasted for any decent amount of time. Despite the price of C4, I trusted other reviews and went for it. It is very good stuff. It works very well and restores the tired grey bumpers and plastic panels back to black and the results last. Follow the instructions properly, shortcutting will not give you good results. Do not apply this in heat or sun, it won’t dry properly and goes sticky. Like I say, follow the instructions properly and you won’t go wrong . I would say that it lasts for approx 8 -12 months before my bumpers start to turn a bit faded again. The little bottle goes a long way. I bought make up remover pads and used them to apply and it worked fine. Cheaper than the pads that you can buy with the product. I would definitely recommend C4, just wish it was cheaper as it is very pricey.
T**R
Recommended good quality
This was the product I was looking for years for but could not find. Where others last a few weeks or months, I found this turned the tired looking Grey trim back to a black colour and it has stayed that way without fading at all over time. You only get a small bottle but a little goes a very long way.
H**A
Amazing
Amazing, easy to use
J**N
Back to black that lasts.
The surprising thing about GTechniq C4 is the tiny bottle of liquid you get. Even the 30mm size , which is what I used , is still only the size of a vape liquid bottle. First thing you’ll say to yourself is “what the hell am I supposed to do with that?” but as it turns out , I managed to do mine AND my wife’s car and still had a little bit left over. If you only have the one car to do , buy the 15mm size which should be enough. The little makeup remover pads that come with it (4 in total) are not great , but ok , but you’ll probably need a few more , so go upstairs to your wife’s unbelievably disorganised dressing table (I can’t be the only one) and nick a few of hers as they’re exactly the same. If you are doing this outside , check the weather forecast for the next couple of days as this needs to cure for at least 12 hours before getting wet. Make sure the plastics of your car are clean and free of dirt then apply 4 to 5 drops on the pad which is all that’s required and will surprisingly cover a substantial area. It’s been 9 months since I applied this and I regularly wash the car and it’s still holding up well and has absolutely no signs of needing another application as the plastics still look a rich black. Other products I’ve used , albeit cheap , even when dried out over days in the hot sun still tend to run after it’s been rained on and can see run marks down the paintwork particularly around the wing mirrors…Not so with C4. Also , you’d be lucky to have 2 weeks before needing to apply again with standard “back to black” type chemicals from Halfords, so C4 is definitely worth investing in. In my view , it’s the best and longest lasting plastic blackener I’ve used and will definitely buy more when needed
A**R
Good to restore shine, not colour
Good product Easy to apply It will restore shine but not the colour If your black plastic has turned grey, this will not make is black again. Overall decent product.
P**R
Expensive but works.
Was unsure about this purchase but was fed up of water marks on my black trim. Took some time to prepare the surfaces using a citrus cleaner and rubbing alcohol. Small bottle but goes a long long way. Application was very easy leaving a streak free finish. So far after a month or so looks a good as when first applied.
Y**N
Really works.
Been a month now since I applied it and after several washes. I wish I could share the before and after photos. No more of that chalky texture and water slides perfectly even off it.
E**O
Really works and lasts a decent time
Great product. Really works for my old car external trim. Lasts at least 6 months even with regular washes.
R**N
Torna totalmente nuovo !
Prodotto top !!
A**O
Impresionante
El artículo es maravilloso, restaura por completo la pieza de plastico. Lo volveré a comprar!
T**K
Hat fast meine Teile zerstört
Der letzte Schrott, jedenfalls bei mir. Ich habe mir das Coating für die Plastik Windlaufabdeckung geholt, um diesen ein bisschen extra UV Schutz zu verleihen. Angewandt wie in der Anleitung beschrieben und 14 Stunden "ziehen" lassen. Nach diesen 14 Stunden war das Ergebnis: fleckig und extrem glänzend. Ich konnte das Coating einfach mit etwas Isopropanol wieder abwischen. Erstaunlich. Nun habe ich 1 Stunde die Teile poliert und bin da wo ich vorher war. Nur 40 Euro ärmer.
Trustpilot
2 days ago
2 weeks ago