Eric Evezard wrote: >The book I had stated"never ever glass over micro"---enough said.!
I don't know which book you are referring to, but that doesn't apply to when you put fiberglass on top of foam. In that case, you NEED to squeegee a runny slurry mixture of epoxy and micro into the pores of the foam to avoid putting pure epoxy in there. The micro helps lighten the mixture considerably, probably by about 3/4. The tensile strength of foam is so low that the micro/epoxy slurry is still way stronger, so it's not a problem in this case, but a benefit. The case where you DON'T want micro under the fiberglass is over the spars or some other structural location where the connection between the structural member and the glass is critical. Page 8 of my 1990 KR-2 manual details the use of "micro slurry" over foam, and there is mention of the critical spar connections on page 50, as well as other places. If you put fiberglass over foam without first squeegeeing in SOMETHING, the fiberglass will not stay attached to the foam for long... Mark Langford, Huntsville, Alabama N56ML "at" hiwaay.net see KR2S project at http://home.hiwaay.net/~langford
