ISO Type 4

UltiRock is an exceptionally creamy, hard premium stone for every type of gypsum application. It’s smooth non-reflective surface and high durability makes trimming full models, ditching dies and scanning easy and reliable.

In addition, UltiRock has a silky smooth consistency while mixing and the stone’s flowability and precision enables it to reproduce minute detail.

Physical Properties

Water/Powder Ratio
20 mL/100 g
Working Time
5 - 7 minutes
Setting Time
10 - 13 minutes
Setting Expansion
Compressive Strength, Wet (1hr)
7,200 psi (49 MPa)
Compressive Strength, Dry (48hrs)
11,000 psi (76 MPa)
Item No. Description
Golden Brown
330040 UltiRock Golden Brown 33#/15KG
330041 UltiRock Ivory 33#/15KG
330042 UltiRock White 33#/15KG
Trial Pack
35033 UltiRock Trial Pack Golden Brown 1lb Buy