Just got a new truck and I wanted to protect the exterior black plastic. I spent hours reading reviews. Most products I found were focused on renewing the look of black plastic. But, I was looking for something to protect and maintain only. I purchased Stoner Trim Shine Protectant and a couple other products to compare.

First of all, regardless of which product you use you will need to get the plastic trim clean before you add a protectant. I used a general degreaser and followed up with rubbing alcohol. When the plastic was completely dry I began applying the Stoner product. I tried spraying it on a rag to wipe it on but the product evaporates fairly quickly. So I switched and sprayed the plastic trim directly. You will get some overspray but if your car is clean and waxed it will wipe off with a dry clean towel.

The product seems to get absorbed into the plastic in a matter of seconds. If you use too much it will run (which wipes off easily). Now the results are a nice black shine. Its NOT a fake looking black like my step mother's died black hair. And the shine is NOT greasy, it is more of a matte finish.

Aside from how nice it makes the plastic look, I really like the protection. The treated plastic is very slick. Its kind of like a Calphalon non-stick skillet. For the most part bugs don't stick to it. And the few bugs that do stick clean off easily. The protection seems to hold up to rain fairly well. I plan on applying this product to my truck around once a month. It only takes a few minutes. One can will treat my very large truck twice. I would imagine a can would treat a normal sized car about four or five times if you don't over use.

After an engine bay cleaning and spraying some Trim Shine on the rubber hoses and plastic bits, my engine looks almost brand new. Excellent in my experience!

I don't know about using this on interiors, but man does it make you engine compartment shine when sprayed on everything under the hood. Do it after you've cleaned the engine bay of course. It's like magic and it does not seem to matter where it goes, too much, just wipe it off with a rag. Very cool.

Where has this been all my life?? This thing is phenom. I'm the kind of guy that washing and waxes his car even when I know it's gonna rain tomorrow. What an amazing difference to hit up and shine that's plastic grill under the front bumper!! Engine hoses look great too!! Not available for sale in VA, but thanks to Amazon I have this now.

This stuff is pretty great. I got a can of it as part of the prize at a car show for having the "cleanest" car. This works best on plastic pieces at the bottom of the vehicle. If the car gets wet, this will run down and is oily. In other words, if the plastic piece is above a painted part of the car, you may get a line of oily residue that drips over the paint.