This investment is silica free and is used for creating and controlling metal clay shrinkage. Each bag contains 100 grams.
1. Mix 3 parts powder to 2 parts water. You should mix very small amount ( 1 part = ½ tsp) in disposable cup
2. Pour into desired mold
3. Allow 30 minutes to dry
Only fire starting from cold kiln. Should not be used for casting.