One of the hardest and strongest of all gypsum cements, Hydrostone is recommended for producing high-quality novelty and statuary castings requiring extremely hard surfaces. This product is self-leveling when poured.
|Compressive Strength (1hr)||8,000psi|
|Compressive Strength (48h)||10,000psi|
HYDROSTONE 25 lb box
- Product Code: hs25
- Availability: In Stock