I cant find a plastic filler like bondo that can be sanded and painted. I already used plastic weld to seal the cracks on the inside but I need to fill them on the inside. Any ideas? Thanks!

 

There's a 3M product that is exactlly what your lookin for. I picked mine up at the local auto parts store (Bumper to Bumper National auto parts)

It's a two part flexable sandable plastic repair epoxy. Sets up in minutes...like 3! And can be sanded right after with ease. Was around $30 and was in a smaller white box with two tubes. When mixed it looks like JB weld.

This looks to be the stuff:


http://solutions.3m.com/wps/portal/3...gl7V91QLRJ7Fbl

Just be sure to ruff the area up with 80~120 grit so it adhears.

 

Iused fiberglass on my buddy's bike. Held up pretty good.

 

cool thanks guys. i already went to autozone and they didnt have ne thing. ill keep lookin

 

Ya, you'll have to go to a place that carrys bodyworking products. I'd check online yellowbook for "automotive paint" and start calling.