> I've been making fiberglass seats for my boats fashioned after my own
> posterier,using two part foam to make a mold,etc. I'm looking for a
> release material (I'm using garbage bags to protect my butt and wetsuit
> when sitting down onto the wet glass and mold of the seat) that would work
> better and not wrinkle up while waiting for the resin to kick off (and
> send me out of the boat with a hot seat).

> I find that a custom seat gives a noticable improvement in comfort and
> control of the boat. The amount of pressure on my knees and thighs
> decreased for a given amount of boat lean, works better than just putting
> in tighter hip and thigh braces alone.

Well, I dont have suggestions for a mold release material, BUTT (<-- a little humor)... I do have a suggestion for a different approach to this custom seat you want. You'll need sand, molding plaster (hardware store), paste wax and a large shallow container. Find a container big enough so you can sit your rear in it, a shallow cardboard box might work. Wet the sand with some water. Use enough water so the sand will hold an impression. Put on some tight pants, wet suit maybe. Sit yourself in the wet sand and really packing the sand down and packing it against the sides your thighs. Make the sand deep enough so your rear doesnt end up resting on the cardboard. Carefully get out of the sand, as to not mess up the butt impression. Mix the moulding plaster to a pourable consistancy. Carefully pour it into the bed of sand with your impression. Let the plaster kick. After a couple of hours have passed take the hardened plaster out of the sand. You will have to do a little smoothing out on the butt cast as it will have a sand texture to it. You now have a reusable plaster butt from which to make molds. To do a fiberglass layup you must wait until the plaster is thoroughly dried out. A week or so. Then seal the plaster with a couple coats of shellac. Let that dry. Then some paste wax as a separator for when you do the fiberglass lay up. I know it sounds like a long drawn out process, I think it might be worth it. You could back up the fiberglass with some of your 2 part foam and somehow attach it to your boat. If you dont take this suggestion at least you have inspired me to do it for my boat.

carolyn