Specifications

30
Mounting Stone
Low-Expansion, Fast-Setting Stone
A very hard, fast-setting gypsum
material formulated expressly for
mounting casts to articulators.
Its very low setting expansion
prevents inaccuracies in occlusal
cast relationships that result when
conventional model stone or
plaster is used. Although Mounting
Stone has excellent stacking
qualities, it moves very freely under
the slightest pressure during its
working time. It can be used as a
model stone when a rapid set is
required.
ISO TYPE 3
A specially formulated plaster which
offers a low setting expansion and
fast setting time. Its low compressive
strength allows mounting plates to be
easily cleaned.
ISO TYPE 1
Item No. Description
White Blue
02917 18740 11 kg (25 lb.) Carton
33197 33200 22 kg (50 lb.) Carton
Preweighed Envelopes
18730 18731 100-100 g Package
Item No. Description
White
15520 9 kg (20 lb.) Carton
33227 22 kg (50 lb.) Carton
Preweighed Envelopes
15550 100-100 g Package
Physical Properties
Water/Powder Ratio 63 mL/100 g
Working Time 60–90 seconds*
Setting Time 3 minutes
Setting Expansion 0.09%
Compressive Strength, Wet (1 hour) 640 psi (4 MPa)
Compressive Strength, Dry (48 hours) 1,800 psi (12 MPa)
* Incorporate 15 seconds, hand spatulate 30 seconds.
Mounting Plaster
Fast-setting, Low-Strength, Low-Expansion Plaster
Physical Properties
Water/Powder Ratio 26 mL/100 g
Working Time 2–3 minutes
Setting Time 5 minutes
Setting Expansion 0.08%
Compressive Strength, Wet (1 hour) 4,600 psi (32 MPa)
Compressive Strength, Dry (48 hours) 8,500 psi (59 MPa)
White Blue
White