I am restoring a 1970 GTO Judge and am currently working on the front bumper/nosecone. The material is referred to an "endura" and is a rubber compound that was molded over a steel core.
Most advice on the Pontiac boards recommends that W&G remover should not be used as the rubber is slighly porous and it could cause adhesion problems if residue is left behind. Following the recommendation on these sites, I have sandblasted my bumper, washed it with soap and water, rinsed with water, completed any repairs with 3M flexible epoxy repair kit, then applied 4 coats of SPI epoxy with 1 hour between coats.
I just finished my first round of block sanding the epoxy and have several sand-throughs to the rubber base.
Looking for advice from anyone who knows what endura is and has worked on it, whether or not I should use the water based 700 to clean the sanding sludge off everything before I apply more epoxy, or stick with the soap and water followed by water rinse and lots of dry time. I am thinking that 700 is considerably different than regular W&G remover so not sure if it is OK to use.
Most advice on the Pontiac boards recommends that W&G remover should not be used as the rubber is slighly porous and it could cause adhesion problems if residue is left behind. Following the recommendation on these sites, I have sandblasted my bumper, washed it with soap and water, rinsed with water, completed any repairs with 3M flexible epoxy repair kit, then applied 4 coats of SPI epoxy with 1 hour between coats.
I just finished my first round of block sanding the epoxy and have several sand-throughs to the rubber base.
Looking for advice from anyone who knows what endura is and has worked on it, whether or not I should use the water based 700 to clean the sanding sludge off everything before I apply more epoxy, or stick with the soap and water followed by water rinse and lots of dry time. I am thinking that 700 is considerably different than regular W&G remover so not sure if it is OK to use.