I don't have any pictures, but I just wanted to vent. I wasted $9 on a can of spray on bed liner by Dupli-color, just to see it flake and peel right off. I'm so mad. I painted my mudflaps thinking it would help keep them in good condition.... I should have stuck with what I had, which is Rust-oleum spray on bed liner. It made my tow hooks and my roof rack look great. Why did this have to turn out so different? So lame!

Edit: I guess I should give them a little credit. The stuff didn't flake and peel right off, but it looks like it won't stand up to the elements. When I screwed my mudflaps back on, the stuff started to peel then, not shortly after application. Regardless, I'll most likely be redoing them in the near future with the Rust-oleum stuff.

 

yeah the rust-oleum stuff is a lot better. It might also have to do with spraying it on plastic when its really for metal. I would try scuffing them up a bit then use some primer.

 

What did you do for prep work? Prep is about 10 times more important than the paint.... just my 2 cents

 

^^x2 ive used duplicolor on all my bed liner applications around my truck, and as long as i did my prep work properly it worked fine....

 

Dang it. I didn't really do much prep work. I sanded some rough parts to smooth out the imperfections, but didn't really do much else. With the Rust-oleum stuff, I didn't really have to do any prep work on anything I did. I didn't even sand my roof rack, and it turned out great. I might just get some new ones and leave it at that.

 

IMO if you have any spray left over I would retry the Dupli-Color, but pay more attention to the prep work especially on plastic. Like these guys mentioned before, prep work is 10X more important than the painting process.
1. Clean the plastic pieces really well. This even means getting all of the old bedliner spray off.
2. Scuff them with a red Scotch brite pad until they get a dull finish.
3. Just like with automotive paint, you need something to clean all of the grease and oil and contaminants from the surface to be painted. IMO rubbing alcohol is a very good cleaner for plastic and is a regular household chemical so it's easy to get a hold of.
4. Paint!
5. Enjoy your new looking plastic mudflaps that WON'T peel(unless Dupli-Color bedliner really is crap!)

WARNING!: rubbing alcohol on plastic really IS a good cleaner for plastic, but you shouldn't use it to detail your vehicle as it will leave the surface with a very dull finish and can be difficult to bring a shine back to the plastic. It is more of an alternative to acetone or any automotive de-greaser you would use to prep for paint on plastic. Again, DO NOT use rubbing alcohol as an everyday ''cleaner'' for your interior or exterior plastic!

Zach

 

Thanks ZachL90. I'll either retry with your methods, or I'll just take the mudflaps off. Oh well. At least it was only $9 wasted for the spray can, than $40 for the bucket of roll on.

 

I've never used dupli-color but I've heard good and bad things about it I've always used rust-oleum or Krylon.

 

I've had great experience with the dupi color spray on bed liner. it doesn't stick as good to plastic as metal but you have to relize it is designed for a metal bed. I have my grill painted with it and I have minimal pealing. but I sanded the crap out of my stuff. I painted my lights too didn't prep them very good and they are pealing some. one of these days when I have nothing to do I'll probably fix it

 

Same as the others here with that and lots of other Dupli-Color products, man. Prep work is THE step that will make or break you with just about any spray-on coating (paint, liner, dye, etc). It's a little unfair to just scream it sux and kick the can, especially when you said you didn't do your part on it. It sounds like you said "I took my Kia offroading and it just fell apart!"

For the future, always try to remember to degrease, remove rust/build-up, existing coatings if they'll interfere, and then go over it once with a good rubbing alcohol (denatured is best). And as above, use things for what they're meant for.