Building a Sea Chest

[mbmcdermott18]

Dave thanks for the advice.

I was going to wax it with partall #2 before applying the pva do you think this would seal it up ok or should I paint it?

I have read about people making the mold smaller on the top. How much smaller should it be? Is it pretty much a guarantee that the part is not going to come off w/o tearing up the mold? If so thats ok but I would like to be able to keep it.

I was thinking I would drill several small holes in the sides of the mold and then fill them with wax then when I get the part ready to take off I will drill a tapered hole into the bottom of the mold that I can put my blow gun in and use a little air pressure to break it free.