This silicone Shrinkage Stopper mould is designed to work precisely with Round Bezel Builders, to make placeholder stones in Silica Free Casting Powder or other investment.

Using the Silica Free stones when firing ensures that the bezel won’t shrink, and will stay the perfect size for your stone!
- Simply place the investment stones into your dried clay bezel, and fire in kiln. 
- Remove your item from the kiln, leave to cool, then soak in water to dissolve the casting powder.
- Refine and polish, then set your stone with a strong glue, such as Special T, in a perfectly sized bezel.

Mould includes 9 sizes: 10mm, 9mm, 8mm, 7mm, 6mm, 5mm, 4mm, 3mm, 2mm (Diameter)
Made from soft silicone.