Tricks for fiberglass bed. (Sanding, checks,scratches)

[jstone97]

So posted is a picture of what I'm dealing with along the whole passenger side of the bed,

I've used 180 and 220 wet to try to smooth out and get rid of the scratches and checks, 30 minutes of sanding and I get no where, next step I got out the good ol bondo, and had smoothed over ever so nicely and sanded back down and that's where I'm at, guess that's where I'm going to be unless anyone has another trick?

[Jersey_Joe]

U need an orbital sander. That all has to come off

5Star tuned.....

[jstone97]

U need an orbital sander. That all has to come off 5Star tuned..... got one of those.. I was goin by what my dad told me but I guess it's best to just take it down. I have 180 on the sander. That should do it

[jstone97]

Gotta tell ya.. This crap sucks, must be glass prices falling out of the original fiberglass,

Using bondo to fill in, sand down and re prime, and sand some more.