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i know im supposed to put flex additive into the paint when i paint my bumpers but do i have to put it in the primer also? i need to know pretty soon cause ive been working a lot lately and am gonna spray a lot of parts asap.

 
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bumppp

 
Rep Power: 729

What kinda primer are you using?? No flex agent was put in my primer.

 
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i wish i could help and would if i could

 
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im using duplicolor primer surfacer. not in a rattle can lol. its 1:1 mixture with the thinner and it says nothing about adding flex additive but i wanted to make sure before i sprayed the bumpers.

 
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You shouldn't need flex agent in that primer, as long as the car is sanded good, it should be ok.

 
Rep Power: 870

ok thanks for the help dude. im glad i remembered to check back to this thread cause i was about to spray everything besides my bumpers lol. glad i didn't. now i can spray all the take off parts at one time