Hello All,
I am looking to respray my fiberglass race bodywork but I've never painted something so flexible. I know you usually put flex additives in paint for car bumpers - should I put a flex additive in the paint for my race bodywork?

Also, I had intended to spray rustoleum primer on the body to expedite things - will the primer crack and cause the paint to look awful with out a flex additive?

Thanks,
Jim