Specifications

23
Prima-Rock
High-Strength Die Stone
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 (1 hour) 8,000 psi (55 MPa)
Compressive Strength, Dry (48 hours) 17,000 psi (117 MPa)
Item No. Description
Violet Yellow Ivory
16590 16592 — 5 kg (11 lb.) Canister
16608 16616 — 11 kg (25 lb.) Carton
31712 31720 34878 25 kg (55 lb.) Carton
Preweighed Envelopes
16624 16632 — 120-70 g Package
Prima-Rock has the highest
compressive strength of any Whip
Mix die material.
Vacuum spatulation provides a
smooth mix which ows 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 22 mL/100 g
Working Time 5–7 minutes
Initial Setting Time 10 minutes
Setting Expansion 0.18%
Compressive Strength, Wet (1 hour) 7,500 psi (52 MPa)
Compressive Strength, Dry (48 hours) 14,000 psi (97 MPa)
Item No. Description
Green Blue
18570 19291 11 kg (25 lb.) Carton
31739 31747 25 kg (55 lb.) Carton
Preweighed Envelopes
18597 — 120-70 g Package
Jade Stone
High-Strength Die Stone
Jade Stone stacks well after mixing
yet ows readily under minimal
vibration. Popular for its smooth
jade-like surface, high strength,
and low setting expansion, it
is compatible with all types of
impression materials. The light,
pastel green and blue colors of Jade
Stone provide excellent contrast to
casting waxes.
ISO TYPE 5
ISO TYPE 4
Gypsums
Violet Yellow Ivory
Green Blue