The mold is made of 5/8" mdf. It's stapled together with 1" staples. There is a 13 degree angle front and back which is what Tim and I measured from the boat's transom when we built his bracket. The inside of the mold was coated with iso-polyester resin. Once that dried it was sanded with 220 grit.
I then waxed the mold 4 times with partall paste. You got to let the partall dry (about 10 min) then wipe the mold with a clean rag after each application. This makes it nice and slippery inside. Partall reccommends using a turkish towel to wipe down the mold. I used an old Italian white tee shirt. The gray stuff is a heavy coat of duratec sanding primer. While that was still slightly tacky I began laying down matt.
The corners got 2 layers of 4 inch matt tape. Then I started laying down the heavy 2 ounce matt. There is 2 layers of 2 ounce matt over the entire mold including overlapping in the corners. 1708 six inch tape is applied to all the corners first. Then 1708 sheets are applied over the entire mold. There are some good books out there that describe how to lay up a mold. I did not count how many layers of 1708 that I applied. I just kept going till I got the desired thickness I was looking for. 5/16"-3/8" thick all the way around. The corners are about 5/8" thick. I used 5 gallons of resin so far not drop more or less. This weekend I hope to install the transom, stringers, and upper ledge and then I can pop it out of the mold to see what it looks like.
strick