fiberglass repair

[Sheldo]

I've got a couple spots in the engine bay the the previous owner tried to fix and did a rather half a__ job. The front quarter was repaired at some point and they did a decent job on the outside but roughly laid in some glass in the engine bay. I'm not ready for a complete re-spray/restoration yet, but want to clean up the engine bay. The engine is out now getting rebuilt, so I have access to the engine bay. I can sand some spots to flatten things out, but there are some rough, low spots. What's the the best way (if there is one) to fill some of the areas to prep it for some paint without laying new glass?
Thanks in advance for any suggestions.

[steve lyle]

Duraglass - basically polyester filler mixed with reinforcing glass fibers.

[Sheldo]

Thanks Steve - looks like that will work, and it looks like I don't have to buy way more than I could ever use.