|Sep 13, 2012, 02:48 PM|
Joined Feb 2004
Fiberglass Body Work for Solar Car
I am a member of a Solar Car Race Team at my local university and we are working on a new car body and canopy.
I am currently on the canopy team and we are working to create a new fiberglass canopy. We are using a technique similar to the lost foam method where we form a foam plug, cover the plug with dry wall mud to keep the resin from melting the foam and then fiberglass over that with about 3 layers of fiberglass.
This fiberglass shell will be our canopy, with a lexan windshield added later.
My question is how do we finish the fiberglass to get it to a smooth surface for painting. I know the proper way to do this is to first make a mold for the part and coat the inside of the mold with a jell coat before laying down the fiberglass. The problem is we are on a very tight budget and don't have the extra materials for the mold or anyplace to store the mold since we just got kicked out of our garage because they found asbestos in it.
My idea is to coat the entire part with bondo to fill in the weave of the fiberglass and then sand it smooth. The problem is this will add extra weight. Some other members think we can just sand the fiberglass smooth but I am worried about sanding into the fabric and exposing the glass fibers.
Any advice is appreciated.
|Sep 27, 2012, 12:41 AM|
If the mold was good enough, then 2 or 3 coats of auto primer should fill the weave enough, sanding between coats. Better, it is quick and accepts most paints, and there is not much weight penalty. If youi go over it using bondo for the really rough bits first, the final product should be good enough unless you are looking for "best finish" prize!
|Thread||Thread Starter||Forum||Replies||Last Post|
|Help! This is my car, what model, what can i get for it, and how does it works||jcarlberg||Car Talk||3||Aug 02, 2012 09:22 AM|
|Discussion smallest solar plane and solar car and solar mobile charger||raazray||Foamies (Scratchbuilt)||3||Aug 11, 2009 04:23 PM|
|Discussion solar plane,solar mobile charger,solar car||raazray||Flying Wings||3||Aug 10, 2009 03:21 PM|
|Discussion Can Bondo Fiberglass for car repair be used to construct sub bodies?||GreenAce92||Submarines||12||Apr 05, 2009 12:07 PM|
|Discussion Car Body Art Work Design Contest 2008||Edamracing||On-road Cars||0||Jul 16, 2008 01:51 AM|