Renew Protect trim restoration

Vehicle: 1988 BMW 525e
Time/Difficulty: Bout 1 hr per coat
Parts Needed:
  • Cleaning supplies
  • Renew Protect Blak
  • Renew Protect Gloz
  • Renew Protect Satin
  • Sponge applicator
  • Rag
  • Gloves
By diyauto
( 4 )

10 minute read

Hello everyone,

We just got some test product samples from Renew Protect. We tried them out on the E28 project car and would like to show you the results. Below is a video of the provided DIY, enjoy!



It is a multiple step process. You first apply the Blak product which restores the trim back to its original black color. Next, depending on the finish you want, you choose either a shiny gloss finish with the Gloz, or a matte satin finish with the Satn.

We found it was best to do multiple coats which gave the most even finish. This is especially true on the dashboard which was so dried out it was starting to crack. Since it was so dry it really absorbed the Blak, after a few applications you could really see the difference.

It comes with two applicators, a square sponge for tires and a wedge sponge applicator. The wedge worked great as you could apply to one side and apply the product right up to the edge of the trim without getting any on the paint. We do recommend keeping a clean cloth handy to wipe away any stray drips. 



Here are the before pictures.  We had applied some of the store brand trim restorer 3-4 months prior when we first got the car. As you can see the store brand wasn't too effective as the bumper and door trim were already turning back to its faded, light grey color.



We decided to do the upper interior door trim as well. The inside wasn't too bad when we got started, only slightly faded.



As you can see the dash is extremely dry, faded, and blotchy. It is already cracking in several places. It definitely needs some help.



We started by getting all the surfaces as clean as possible. We moved the car into the garage as it is cold here in Detroit. Ideally you want it to be around room temperature when doing this.

It took me a coat or two to get the hang of applying the product. The blak has particulate in it which helps make the trim black again. Shaking the bottle occasionally as you go keeps it properly mixed. 

For the most even finish it took 3-4 coats of Blak to get desired results. We used the small sponge for most of the application and the big sponge for the tires. Here are some shots of the application process.



Applying the product to just one side of the wedge sponge lets you get right up to the edge of the trim without getting anything on the paint.




Here is a comparison. With just a couple coats the left side is already looking much darker and shinier than the untreated right side. The left side is still slightly blotchy but adding a few more coats evened it out.



Since the dash was so dried out is sucked the product right up. We put a lot on there since it really needed it.



We used the square sponge for the tires. 



After applying multiple coats the Blak really tidied up our trim! It looked much darker than before, and the color was very even. 

Next you choose the type of finish you want, satin or gloss. We chose to have Gloz on the outside and Satn for the interior. 

You apply the Satn and Gloz products the same way as the Blak. We ended up doing 2 coats for this step.

Here are some after photos, we’ll update with new pictures this week. 

Overall we are very impressed with this product. we used the standard “turtle” formula during the summer and it turned out to be more of a temporary fix. As you could see in the before photos, the trim was already fading a couple months after applying the store brand trim restorer. 

The Renew Protect system made everything look better than new. This really shines for the interior as that has drastically changed from the before. I would strongly recommend this to anyone looking to brighten up their fading trim.



Here are some pics a couple months after the product was applied. It hasn't really faded at all. The exterior and interior trim all looks great. The dash especially has totally improved. Really impressed overall. 








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