Prima-Rock

High Strength Die Stone

ISO Type 4

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)
Item No. Description
Yellow
16632 120 - 70 g Package
31720 25 kg (55 lb.) Carton
16592 5 kg (11 lb.) Carton
16616 11 kg (25 lb.) Carton
Violet
31712 25 kg (55 lb.) Carton
16590 5 kg (11 lb.) Carton
16608 11 kg (25 lb.) Carton
16624 120 - 70 g Package
Ivory
34878 25 kg (55 lb.) Carton
Trial Pack
16640 4-70g packs of Prima Rock Violet Buy