I wouldn't use regular body filler. Instead I'd use fiberglass reinforced body filler ("kitty hair"). I've never used epoxy putty so I can't comment on it. Whatever you decide to use make sure you prep the plastic properly if you want it to turn out right.

 

If it's a very small spot like a gap in a dash kit use the epoxy since it's strong once it cures.

If you were to use a body filler....as customtronic suggested....use filler with glass beads and chopped matt.

 

You can even make your own.

Whenever I'm cutting or tearing chopped matt or my biaxial cloth I do it over a sheet of newspaper to catch all the clippings.

Use long fibers 1' to 2" for a larger repair and very short ones for a small repair. This will make sanding easier.

I put these clippings in an envelope and use it to whip up a batch of reinforced filler.....and you use whichever filler you like best.

Add a little extra resin along with the extra clippings you added and you're good to go.

 

That's good idea.

 

http://www.mp3car.com/vbulletin/fabrication/85350-how-make-factory-bezel.html

Specifically, post #3.

 

Nice one. Thanks.

Thats the type of content I look forward to finding that makes me want to turn my computer on after being off of it for a while.:blush: