Re: Most are 4 oz. rectangles...
Fred in NC
>Bubba, birch plywood, sanded smooth should work. Seal with shellac, and spray with epoxy paint.
I think epoxy will resist the lye very well.
One idea would be to hinge the sides, so when it gets solid, you can drop the sides, and there you have a cake of soap ready to cut up.
I was thinking of paraffin, which is the sealing wax sold in the grocery store in the canning section, as a coating so the soap will not stick. You know, polyethylene is the best material for this, and paraffin is a cousin of poly. Mineral oil, and even cooking spray might work.
If you make the mold the right size, you can lay a piece of wax paper in the bottom with no waste. Clear plastic is probably cheaper, IF you can manage to juggle it in one piece .... This will make it easier to cut the pieces.
Hope this will give you a starting point. And maybe you will make such good molds that you can sell them to others...
Please let me know if it works. I would love to collect my royalty (a couple bars of soap) one of these days !!!! Remember, I can find the way to your place... All I have to do is go to the top of the mountain, and follow the smell of that frying oil you use for diesel.....
