alright i'm smoothing my dash this weekend and would like some help from you guys...with this said i have a background in car audio & electronics...not body work...so could one of you guys please give me some advice on where to start what grit sand papers to use and whether it's better to use a DA or by hand basically it would be nice if someone could walk me through what to do...i know i have to pick up some adhesion promoter that way i can lay the bondo to the plastic...maybe i'm wrong...THANKS TO ALL WHO REPLY!

 

never tried to do a dash before, but If i was to I would sand with 320 on a d/a using a foam isolater to remove most of the texture, then wash with warm soap and water, prep using an adhesive promoter,then prime several light coats of a flexable sandable primer. sanding that with 500 and then using sealer/paint color of choice.

my .02

 

couple coats of slick sand I believe its called will help fill in the texture.
http://www.gmfullsize.com/forum/showthread.php?t=166086

 

Pretty much what SUPER said.. I would def sand off some of the texture. For 1 is so that you don't have to app so much of that filler to it, for 2 so that is opens up the pours, cuts into some to get a good base to spray the filler, adhesion promoter to.... 3 TAKE YOUR TIME...

 

might want to wipre it down with wax and grease remover first so not to get it into the plastic

 

Def not wax.. lol After you get it ruffed up, hit it with some denatured alkyhol(sp)..

 

That's how I spell alcohol after I've had some

 

wax would be bad, wax and grease remover is a mixture of alcohol i believe or some other thinner

 

would acetone work? & you all agree a DA would be better than by hand?

 

I'd imagine so