Fiberglassing help?

[molurus73 0]

Is there any easy way to get rid of small dips and valleys in the surface of a fiberglass box besides just gettin' at it with a sander? I just about have the whole thing covered with Bondo body filler and am working it over with my Mouse sander. I notice there are some small dips or valleys here and there (actually all over). If I try to get each individually, it will take a lot of time and I am concerned with the body filler hardening before I am done. Should I just mix each batch in very minute quantities? Is there an easier way that I am not noticing? Anyhow, back to the sander it is. 90 degrees outside and I am in a garage with no fan. Damn addiction.

[allConfused 0]

im confused, are you talking about dips and peaks in the fiberglassor the bondo overing the fiberglass?

if your talking about the fiberglass, just sand down the tall peaks or watever a reasonable amount since your covering it ll with bondo.

if your talking about dips and peaks in the bondo, the easiest way for me to solve this was with a knife. i basically cut all the lumps and such off with a knife until it was fairly flat, then i hit it with a sander to smooth it all down.

but using the knife technique saves ALOT of sandpaper.

sorry if i competly answered wring though cuase your post confused me lol.