Car Plastic Restorers & Trim Restoration

A car plastic restorer is designed to bring faded exterior plastics and trim back to a darker, richer finish. Over time, UV exposure, washing, and weather strip natural oils from plastics, leaving them chalky or grey.

Most plastic restorers work by penetrating into the surface and re-darkening the material, rather than just sitting on top like a basic dressing. Higher quality products also include UV inhibitors to slow down future fading.

The key is prep. If you apply a trim restorer over dirt, old silicone dressings or oxidation, it will not bond properly and results will be patchy. We highly recommend giving the car a proper wash and wiping the trim down with an all purpose cleaner before applying a trim restorer.

This is one of the most common questions we get, and it depends on the condition of the trim.

For lightly faded plastics, a quality black trim restorer or trim coating, such as CARPRO PERL, will usually restore some colour in one application. For heavily faded or uneven trim, you may need a dedicated restoration product, such as Solution Finish Trim Restorer, with stronger bonding properties, sometimes even multiple applications.

If the plastic is physically damaged or turning white from deep oxidation, no product will completely fix that. In those cases, restoration improves it significantly, but it may not return to factory-new. For grey trim that was never black, Solution Finish Fusion Grey restores it to the right colour rather than forcing it dark.

Proper cleaning beforehand makes a bigger difference than most people realise.

Longevity varies depending on the product type, prep and how often the vehicle is used.

Basic dressings may last a few weeks. A proper car trim restorer or trim coating can last months, sometimes longer if maintained correctly.

Factors that can affect durability:

• UV exposure
• Car maintenance
• Use of harsh chemicals
• Condition of trim

If you want maximum durability, look for a product designed as a trim coating rather than a temporary dressing, and top it up with a spray coating or detailer that's safe on plastics between applications.

In most cases, yes. Plastic trim restorers are designed for textured black or grey exterior plastics such as bumpers, mirror surrounds, cowl panels, door and window rubbers and so on.

However, you should avoid using them on:

• Painted surfaces
• Clear plastics such as headlights
• Windscreen wiper blades

Always test on a small, hidden area first. Some smoother plastics can react differently compared to textured trim.

They look the same on the shelf and do different jobs, and picking the wrong one is the usual reason trim goes grey again in a month.

A restorer puts colour back. It penetrates the plastic and re-pigments it, so faded grey trim actually turns black rather than looking black while it's wet. Solution Finish is the reference product here, and a rubber restorer like Koch Chemie Rubber Refresher does the same for door seals and window rubbers that have gone chalky. Restorers last months, but they only work on trim that's actually faded.

A dressing conditions and protects trim that still has its colour. It sits on top, adds a satin or gloss finish, and blocks UV so the fading doesn't start. CARPRO PERL, Koch Chemie HPC and PSS are all dressings. Weeks to a couple of months per application, and they're what you use every wash or two to keep good trim good.

The order matters. Restore first if the trim has faded, then dress to protect it. Dressing over faded trim just hides the problem until it rains.

For engine bay plastics and hoses, Koch Chemie Motorplast is the dressing built for that heat.