Star Shape Silicone Resin Mold - Full FlexibleSilicone Resin Mold Star Shape Full Flexible Mould Smooth interior makes it easy to de mold after its fully cured and reduces the need to cut back and polish. Or you can use release spray or soap water, which may help extend silicone mold's life. The Resin Molds coaster is very versatile in its usage! Perfect for epoxy resin coasters, small flower pot bases, concerets, plaster, cement, polymer clay, etc. You can also add dry flower, pearl pigment,