Mend-a-Mold is a ready to use adhesive that has been formulated specifically for repairing plaster ceramic molds, and works equally well on both wet or damp molds.
Simply apply to both sides of the broken pieces, press together and hold a few minutes. Use a wet sponge to wipe away excess from cavity and seam, if it is a two part mold, so the parts don't stick to each other and then put your mold back together and band it until the mold is dry.
Apply pressure while adhesive sets using a rubber band or banding strap. After 2-3 hours, your mold is ready to use as long as it is no longer wet.
Product Volume: 1 fluid ounce (30mL)