Painting a clubsport rubber rear bumper-is it the same as painting a plastic bumper

[VTLS1]

hey all,have had a good search but cant seem to find anything on this so any help is appreciated
have got a clubsport rear bumper,problem is the rear bumpers are a rubber type bar not plastic.
question is,is the process the same for primer/paint of a rubber type bar as it is for a plastic bar?
do you use the same type of primer & paint used for a plastic bar or is there another type of primer paint you have to use?
may be a dumb question in some ways but i dont want to stuff it up & do it twice

 

[bandit10]

a rubber bumper??? is this a joke?

If its genuine it will be plastic, if its aftermarket it will be fiberglass.

Bare plastics need a adhesion promoter or the paint wont stick to it, other than that you can use the same paint on both.

 

[VTLS1]

a rubber bumper??? is this a joke?

If its genuine it will be plastic, if its aftermarket it will be fiberglass.

yeap,thats the normal story & i completely agree normally but,,no joke on this one i am sorry to say. the vx clubsport bars are evidently made of thermoset polyurethane resin whereas a standard bumper bar is made of thermoplastic polyurethane resin. thermoplastic as the name suggest is a plastic type material. thermoset is still a plastic type material to a degree but is more like rubber than anything else. this is why the vx clubsport bumpers are more flexible as well as a bit more durable & lighter,which is why to me & others i have spoken to its classed as a rubber bumper.
being thermoset they cant be plastic welded as the material degrades rather than melt normally,so therefore it not really a plastic bumper.
if someone wishes to correct me on this as i could always be wrong.

 

[sm00th]

The hsv bars usualy come with a white primer on them from the factory. lightly sand the primer with 800 wet and paint as normal. if it is bare rubber ask your local paint shop what plastic primer the recomend

 

[sleepa]

I am pretty sure they are both plastic still, just a different makeup. Plastic primer should work well as I have used it on very flexible plastic parts and it stuck very well without cracking.

 

[VTLS1]

I am pretty sure they are both plastic still, just a different makeup. Plastic primer should work well as I have used it on very flexible plastic parts and it stuck very well without cracking.

i did say they are both plastic of sort,its just the hsv bars have a more rubbery composition.so i thought being more flexible you might have to use some special shite thats not the norm.i'll just spray with plastic primer,let it dry & flex it a bit then see if it cracks.

The hsv bars usualy come with a white primer on them from the factory. lightly sand the primer with 800 wet and paint as normal. if it is bare rubber ask your local paint shop what plastic primer the recomend

went to my local paint suppliers & the bloke i spoke to was a bit stupid. so i though i'd ask here to see what comes up.
yes,early hsv bars generally came in white primer,later ones vy onwards that i have seen were black