Mounting Stone

Low-Expansion, Fast-Setting Stone

ISO Type 3

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.

Physical Properties

Water/Powder Ratio
26 mL/100 g
Working Time
2 - 3 minutes
Setting Time
5 minutes
Setting Expansion
Compressive Strength, Wet (1hr.)
4,600 psi (32 MPa)
Compressive Strength, Dry (48 hrs.)
8,500 psi (59 MPa)
Item No. Description
18731 Mounting Stone Blue 100 - 100g Package
330058 Mounting Stone Blue 33#/15KG
18730 Mounting Stone White 100 - 100g Package
330059 Mounting Stone White 33#/15KG