Universal investment for rapid preheating.
polivest is an extra fine grain phosphate bonded carbon free
investment for all types of alloy. It is particularly suitable for
making bridges, crowns, inlays and onlays and can be used with
either programmed or rapid preheating (placing it directly in the
oven at 850-900°C). Polivest gives excellent results with both
the metal cylinder and free expansion techniques. It can also be
used for pressed ceramics.
Mixing ratio:
100 g : 24-26 ml
Mixing time:
30 sec.
Working time:
5-7 min.
Settting time:
10-12 min.
Ready for pre-heating:
30 min.
Max reachable temperature:
900 °C
Compressive strength:
13-18 MPa
Total max expansion:
1.7 % (75% espansol)
3.5 % (100% espansol)
