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Castalot - 25 lb box (approx 11.3 kg)


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Castalot is a fast setting, refirable mould material for glass slumping, fusing or kiln casting applications.  It is as easy to use as plaster, yet is durable enough to withstand many firings. It is estimated that you can get up to 10 full fuse castings or as many as 50 slumpings off a single mould.  Castalot has a great surface quality and simply mixes with water (2 parts Castalot to 1 part water by volume) to pour over an original. It is fast setting and easy to carve, either wet or dry. 

For best results it is important to pre-fire the mould to 50° over the desired fusing, casting, or slumping temperature. This will fire out the impurities making a longer lasting mould. You may force fire the damp mould during the curing process.

Full instructions are provided.  As this product is moisture sensitive, the bag should be resealed after use and stored in a cool, dry atmosphere.

Safety Note: An approved particle mask or respirator should be worn when handling this product or any other dry, powdered material.


  • Model: Castalot
  • Shipping Weight: 13kgs

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Castalot - 25 lb box (approx 11.3 kg)

Castalot - 25 lb box (approx 11.3 kg)

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