Can you suggest a source for sand-able foam core for glass layups ? Styrofoam is too flakey. I have lastafoam and other laminating sheets, but I need blocks to cut and shape into the teardrop aft of the Sam James cheek cowl for RV3/RV4.
Can you suggest a source for sand-able foam core for glass layups ? Styrofoam is too flakey. I have lastafoam and other laminating sheets, but I need blocks to cut and shape into the teardrop aft of the Sam James cheek cowl for RV3/RV4.
I used the 1" pink foam to make a couple of plugs. When I covered it with bondo to make a slick surface, the foam melted. There was much sadness at the Boatright house that day.
Moral of the story: For direct contact with the pink foam, you don't want to use polyester based filler or resin.
Microballoon as a skim coat works great over the pink insulation foam. I glue pieces together to get thickness using 3M spray glue and it works great. The foam itself sands nicely and the micro is easy to sand as well.
That's entirely correct. Sorry, I missed that part of the original post. For molds I've used all kinds of stuff - Styrofoam, hot glue, Bondo, duct tape, etc. Please disregard my previous rant.I think there is a big difference in using foam for a structural core or just using foam for a shape allowing you to lay up several layers of glass for as plentium.
That's entirely correct. Sorry, I missed that part of the original post. For molds I've used all kinds of stuff - Styrofoam, hot glue, Bondo, duct tape, etc. Please disregard my previous rant.