
Buffstone is an economically priced ISO Type 3 gypsum designed for general laboratory use, offering an extended working time of 6-8 minutes for multiple pours of models or bases. It sets in 15 minutes with a setting expansion of 0.15%, and achieves a wet compressive strength of 4,000 psi (28 MPa) at 1 hour and a dry compressive strength of 8,000 psi (56 MPa) at 48 hours. This 33 lb (15 kg) carton is made in the USA.
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Buffstone is an economically priced ISO Type 3 gypsum designed for general laboratory use, offering an extended working time of 6-8 minutes for multiple pours of models or bases. It sets in 15 minutes with a setting expansion of 0.15%, and achieves a wet compressive strength of 4,000 psi (28 MPa) at 1 hour and a dry compressive strength of 8,000 psi (56 MPa) at 48 hours. This 33 lb (15 kg) carton is made in the USA.
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