Standard sand

Synthetic molding material coinditioned to be suitable for molding (s. Sand conditioning), which is used in state-of-the-art, highly automated molding plants and is repeatedly recycled. The quantity of additives, such as water, bentonite, and carbon-containing additives, required in the individual utilization cycles depends on the quantity of new sand (s. New sand addition), the coresand addition (Returned coresand) and the weight loss rate (thermal load) of the molding material system.