what type oof mold release should i use on a mold made of ultracal.thanks .
That's exactly what both Pete and Chuck have taught me at both their respective houses on different occasions, as they both do that with all their hydrocal/ultracal molds. Wet the inside of the mold by dumping water into it until it's saturated and pour it out before adding latex (or just heavily mist with a water spray bottle) so the walls of the mold are damp, not dripping wet. Theory being something like hydrocal being "hydro/water", if the mold is wetted, once it dries itself out, the latex will pull into the sides of the mold better. Like you said, when the latex has dried, pour baby powder in and rub it around with your hand so the latex doesn't stick to itself when removing the piece from the mold.Never heard the water method before Andy...generally you would want you mold dry as not to contaminate the latex