Die Stone Prima-Rock Whip Mix Gypsum


ISO Type 4

High Strength Die Stone

Available in Violet, Yellow and Ivory

SKU: WHI 16624, WHI 16632, WHI 330035, WHI 330036, WHI 330037

SKU: N/A Category: Tag:


PRIMA-ROCK has the highest compressive strength of any Whip Mix die material. Vacuum spatulation provides a smooth mix which flows readily. It’s compatible with all types of impression materials and upon setting, PRIMA-ROCK develops a dense surface with superior hardness.

Physical Properties

Water/Powder Ratio: 20 mL/100 g
Working Time: 6 – 8 minutes
Setting Time: 12 minutes
Setting Expansion: 0.13%
Compressive Strength, Wet (1hr): 8,000 psi (55 MPa)
Compressive Strength, Dry (48 hrs): 17,000 psi (117 MPa)