Specifications

14
Beauty-Cast
For Low-Fusing Crown and Bridge Alloys
Physical Properties
Water/Powder Ratio 30 mL/100 g
Working Time 3 minutes
Setting Time (ADA Method) 14.5 minutes
Ready for Burnout (Minimum) 30 minutes
Setting Expansion 0.40%
Hygroscopic Expansion 1.50%
Thermal Expansion 480° C (900° F) 0.55%
Thermal Expansion 650° C (1,200° F) 1.20%
Compressive Strength, Wet 700 psi (5 MPa)
Item No. Description
00019 2 kg (4 1/2 lb.) Package
00035 11 kg (25 lb.) Carton
Preweighed Envelopes
00078 24-50 g Package
00094 24-75 g Package
00108 144-50 g Package
00124 144-75 g Package
of Beauty-Cast at 1.5% and Fig. 2
shows thermal expansion at 0.55%
at 480° C (900° F). We unhesitatingly
recommend the Hygroscopic
Technique with Beauty-Cast as best
suiting today’s needs for a precise yet
simple routine technique.
The inherent high thermal expansion
of Beauty-Cast at 650° C (1,200° F)
(Fig. 2) makes it possible to use
the standard High Heat Technique.
Setting expansion can be controlled
by varying the number of ring liners
in the Inlay Ring (Fig. 1), resulting in
varying degrees of total expansion.
Casting at 650° C (1,200° F) is
necessary for the additional 1.2%
thermal expansion to compensate
for gold shrinkage. In the ADA
Specication No. 2 for Investments,
the term Type I, Inlay Thermal refers
to investments used by the High Heat
Technique. With Beauty-Cast either
technique – the Hygroscopic or the
High Heat – will produce extremely
smooth castings of a rich golden color
that seldom require pickling.
America’s Leading
Gypsum Investment
• The proven standard for the
Hygroscopic Technique
• Can also be used for the High Heat
Technique
The Hygroscopic Technique with
Beauty-Cast is as simple and quick
as the High Heat Technique, but the
results are much more uniform. The
use of a water bath at 37.8° C (100°
F) automatically brings all patterns to
uniform temperature, softening the
wax enough for even expansion of
the investment. Combined, the wax
expansion and the high hygroscopic
expansion compensate for most of
the gold shrinkage, and thus the low
temperature burnout at 480° C (900° F)
provides the balance of the
required mold expansion.
Fig. 1 shows hygroscopic expansion
ISO TYPE 1
Fig. 2
TEMPERATURE
PERCENT EXPANSION
Fig. 1
Hygroscopic Expansion
(Under Water)
Semi-Hygroscopic Expansion
Normal Setting Expansion
Digital Water Bath
For use in the Hygroscopic
Technique