I molded a pair of fiberglass tubes like that for my Mako21 a few months before Katrina, but I haven't touched the boat since then. I also molded a pair for my Mako26 about 8 months ago, and I plan on installing them in about 2 months.
I'm glad to see someone put the same kind of plan into action. However, I never thought of having any of the drain lines exit through those scuppers. Ingenious.
Basically, I wrap the mold in thin plastic. That way I don't have to spend time waxing the thing and the part comes off alot easier. It doesn't have to be perfect anyhow. I use 1.5oz mat for the flange and 6 oz cloth to wrap the actual tube. There are about 5 wraps of the 6 oz cloth. I used the 1.5oz mat to tie the flange onto the tube in the glassing process.
I have some cleaning up to do, but these are all set to go into the boat when that part of the project comes up.
