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Buffstone Type III
Whip Mix
Buff Stone from Whip-Mix is a Type 3 gypsum indicated for all standard lab uses. Buff Stone has a long working time, allowing for various pours of models and bases.
Water to powder ratio: 30 ml/100 g
Setting time: 15 minutes
Setting expansion: 0.15%
Compressive strength: 4,000 psi after one hour and 8,000 psi dry
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