Die Hard-Die Stone (low expansion)    Work time 7-9 min. / Sets in 25-30min.   Item (DHDSLX) This Dental Die Stone is used for making extremely hard crowns, bridges and partial denture models. Apply under vibration to achive the best results.  Excellent stacking properties, with low expansion for dimensional stability. Additional set up time allows for miltiple pours with one batch mix. Consistency 23/100 Work time 7-8 min - set time 30 min. Psi 14,000	Size 50 lb.@ $39.00 Color Green Pink Blue White	Size 25 lb.@ $23.99 Color Green Pink Blue White