Haven't tried that but have had good results on black plastic with Penetrol.

 

^^^This.

I've tried a lot of the different recommended products and this worked the best for me and cost the least.

ALL the recommended products will look great when 1st put on. What nobody tells you with their recommendations are the negative aspects....ie doesn't last very long, very shiney, sticky touch, flakes off...etc, etc.

In regards to Forever Black, I would skip it. I've tried it.

With my experience with it, here's what's wrong with it.
1. It's difficult to put on. You really need to tape up all the surrounding painted areas, since it's a black dye.

2. After it's been put on, it looks great. It's kind of like a paint but what happens just like paint, is that it does not adhere well to the plastic and starts to flake off over time. So what you will start seeing about 4-6 months later is the grey faded plastic underneath, with a bunch of spotty paint on top of it, which just looks awful.

I learned from experience, and will never use Forever Black on my plastic trim pieces ever again. It took me a lot of effort to get the remaining flakes off.

I now use the Penetrol, and it has been great on ease of applying it, looks (not overly shiney, just looks like new OEM black), and seems to stand the test of time as well.

 

This is what I use on fender flares and all plastic on my jeep. I really like it easy to apply and don't have to use much.
I got it for oriellys you have to ask for it they keep it behind the counter.

 

Back to Black did absolutely nothing the one time I tried it nearly 20 years ago.

 

I had similar poor results with "Back to Black."

I've obtained good results with this:

 

I took mine off and painted them with plastic Rustoleum

 

Krylon Fusion is what I used with great results, in their third year after 2 they looked great, pushing three now and I am about to refresh them.

 

Krylon Fusion is no longer available. But Rustoleum Accents is a great alternative. I used that after I learned Krylon no longer made fusion.

 

Use to use Mothers back to black and several others. Now, I only use Penetrol. It lasts longer and won't smear off as easy.

 

Really, interesting, hope the rustoleum works as well.

Sent from my SM-G930V using Tapatalk

 

Used Forever Black and started to go a little crazy with it. Besides the running boards, I did the front/rear bumpers, mirrors and the door handles. Waited about an hour and did a 2nd coat.

The only thing I didn't do, was the rear license plate bracket. (but I'll do that over the weekend).

Here are 2 pics after 1 week of a running board and endcap. While the rear license plate bracket isn't the same as the end cap you can see a diff.

 

Looks good but the stuff does not last. After a few rainstorms or car washes you will see what I mean. I paint all my plastic parts.

 

Time will tell.

I'll report back here soon.

 

Look at Solution Finish on amazon. Ive had great results with it on my other vehicles that have faded trim. Its a dye, so tape off the areas you want to restore throw on some gloves and apply it.