Description Triangle Coasters with rounded corners can be created with this silicone mould. Smooth interior and large coaster. Ideal for epoxy resin, enhance with colours, glitter and shimmer powder. Use heat-resistant UltraCast resin (temperatures of up to 90oC) to fill these unique geode moulds. Silicone Moulds for resin. Approximate sizes are: Inner 11.8cm (outer 12cm) Individual sizes as shown on image (inside measurements). Wall thickness is 2 mm. Height of mould is 0.9 cm (inside approx. 7.5 mm). Volume approx. 80ml NZ $1 coin shown for scale (not included). Sizes may vary slightly and should be used as an indication only.
