• HYDROSTONE     25 lb box

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.

Weight 25 lb
Water/Powder Ratio 26-28g/100ml
Working Time 20-25min
Setting Time 30min
Compressive Strength (1hr) 8,000psi
Compressive Strength (48h) 10,000psi

HYDROSTONE 25 lb box

  • Product Code: hs25
  • Availability: In Stock
  • $19.00