New bumper
Thread Starter
Racer
Joined: Sep 2002
Posts: 420
Likes: 1
From: SAN DIEGO CA
New bumper
I replaced my 1986 bumper with one of Ecklers updated ZR1 fiberglass bumpers. My old urethane bumper had alot of problems so i decided to replace it with a new one since i was repainting my car. The new bumper requires fitting prior to priming and painting. I can see that some portions of the fiberglass bumper needs sanding and filling to fit like it should. My question is how do i fill if i need to go higher in one spot? Do i use filler or do i have to use fiberglass. im going to fit it to my car this weekend and see how much more work the bumper needs before priming. If i use filler do i put that on before or after i prime it? I see the back of the bumper isn't coated like the outside. You can see the fiberglass from the back. Should i put something on the inside to help it not spider if it gets bumped? thanks for any help!!
Drifting
Joined: Jan 2006
Posts: 1,944
Likes: 22
From: Yooperville MI
You can use Evercoat Vette Fill before you do the primer, just sand off the gel coat in the specific area and clean with acetone before you apply it. I use epoxy primer on them and spray the back at the same time for extra protection.
Instructor
Joined: Jul 2008
Posts: 105
Likes: 0
From: edmonton alberta
I replaced my 1986 bumper with one of Ecklers updated ZR1 fiberglass bumpers. My old urethane bumper had alot of problems so i decided to replace it with a new one since i was repainting my car. The new bumper requires fitting prior to priming and painting. I can see that some portions of the fiberglass bumper needs sanding and filling to fit like it should. My question is how do i fill if i need to go higher in one spot? Do i use filler or do i have to use fiberglass. im going to fit it to my car this weekend and see how much more work the bumper needs before priming. If i use filler do i put that on before or after i prime it? I see the back of the bumper isn't coated like the outside. You can see the fiberglass from the back. Should i put something on the inside to help it not spider if it gets bumped? thanks for any help!!
Filler first, then primer. You can add a flexible agent to the primer but IMO it's pointless because the fiberglass doesn't flex much, you just gotta be more carefull with the 'glass
