have my car nicely painted on my 91 sedan...but for some reason both back and front bumpers keep peeling...DX bumpers black painted blue..rest of car is fine.
they have been sprayed with bulldog twice then painted again..looks great for 2-3 months..starts peeling again...tried to different shops also...was thinking of just putting them back to black...any suggestions? the paint shop ive gone too are 2 reputable ones....

 

Use a flexing agent in the paint?

 

Are they after market bumpers ? Or oem?

Some oem bumpers need a bake cycle to "sweat" and some other raw pastics as well

 

It might sound that whoever is painting it is not prepping it right.. all you're doing is putting a paint job on top of a paint job.. try and get down to the original paint/plastic.. you can try that..
does it start to peel in the same area or random places?

 

its oem bumpers and its random areas each time....this time its right around the corners but then also mid bumper..so weird...i donot know if they did a flexing agent or baked the car..i will ask them ..i want to repaint them again as the car looks great with the bumpers painted..thanks for your help..at least i have a better idea what to ask...

 

ask them if they can spray some adhesion promoter before spraying paint.. it usually helps the paint stick better to plastic

 

He said they used bulldog, which is a plastic adhesion promoter.

 

oh sorry, didnt notice that.. dont think i've ever used bulldog before.. anyways good luck to the OP with results

 

always find some good info on this site..

http://www.hotrodders.com/forum/pain...rs-125970.html

 

they have to be stripped down, and primed with a waterborne primer then spray them. shouldnt peel

 

i only use ppg DPX801, its around 80-90 a quart but ive never had a bumper peal...... plus its ready to spray so whatever u dont use in the measuring cup, you can pour back in the can.......