Molding Rear Bumper Questions Options

[DSToyo]

i am considering molding my rear bumper of my kit. i have never worked with fiberglass and wanted to know how hard it is and is it worth it. i have heard that the mold can crack when being tapped in the parking lot or even weaken with the canging weather conditions. i guess my question is, is it worth it when i am going to get a paintjob/how easy does it crack/how to repair if cracked?

Thanks for any feedback possible

[easternpiro1]

i agree, if you dont know what youre doing...its going to be a pain in the ass! its easy to get the hang of if you can get to practice, but you DEFINATELY NEED a powersander with low grit sandpaper to begin with. and youre not supposed to put alot of mold over the fiberglass...just a little friend applied the fiberglass to mold on my rear bumper in my parking space, sanded it in his autobody class...