spetsnaz103

so trying to paint a duraflex urethane rear bumper. um the paint aint sticking. do i need to wash it and use adhesive promoter then paint? anyone help me with this asap.

zero2005

did you use primer first? or did it come pre primed?
you prolly need to scuff it too.

it should be (from bare plastic/metal)
scuff/prime/sand/clean/basecoat/clearcoat

you may need to add additional coats/steps in order to get the look you want.

Case's97GT

You can use an adhesion promoter but make sure it's a light coat. Just make sure it is cleaned and scuffed first.