VICAST
A572-DH SERIES
POLYESTER RESIN
POLYESTER RESIN FOR CULTURED OYNX,
MARBLE AND GRANITE
Typical Cast Mechanical Properties
1
Test Unit of Measure Nominal Test Method
Tensile Strength psi/MPa 10,500/72 ASTM D 638
Tensile Modulus psi/MPa 580,000/4,000 ASTM D 638
Tensile Elongation % 2.5 ASTM D 638
Flexural Strength psi/MPa 18,500/128 ASTM D 790
Flexural Modulus psi/MPa 580,000/4,000 ASTM D 790
Heat Distortion Temp F/ C @ 264 psi 158/70 ASTM D 648
Typical properties are not to be construed as specifications.
DESCRIPTION
Vicast A572-DH Series is a prepromoted,
non-thixotropic, polyester resin formula-
tion. This product is specifically de-
signed to give good demold times in
marble applications while maintaining
good color in onyx type castings, ena-
bling the use of only one resin for both
marble and onyx. It can be used for
both flat and contoured molds.
BENEFITS
The cure rate of Vicast A572-DH Series
in marble applications is similar to that
of a standard marble resin when used
with the appropriate type and level of
MEKP catalyst.
The color of Vicast A572-DH Series is
superior in a marble matrix; it also gives
a bright, clear translucency in matrixes
filled with standard onyx type fillers.
Vicast A572-DH Series has excellent
green strength for effective demold
times in cultured marble and onyx.
While Vicast A572-DH Series is supplied
at a high viscosity to facilitate maximum
versatility in making small and large
parts. It is also available at other viscos-
ities and gel times.
Typical Liquid Properties
2
Test Unit of Measure Nominal
Viscosity, @77 F/25 C LV SSA Brookfield
Spindle #4 @ 60 rpm
cps 2,000
Specific Gravity @77 F/25 C 1.15
Color pink
Styrene Content % 28
Gel Time, @77 F/25 C (1.0% M-50
MEKP)
minutes 12 or 16
Gel to Peak minutes 11
Peak Exotherm F/ C 338/170
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AOC is a registered trademark of AOC, LLC.
The information contained in this data sheet is based on laboratory data and field experience. We believe this information to be reliable, but do not guarantee its applicability to the user s process or
assume any liability for occurrences arising out of its use. The user, by accepting the products described herein, agrees to be responsible for thoroughly testing each such product before commit-
ting to production. Our recommendations should not be taken as inducements to infringe any patent or violate any law, safety code or insurance regulation. This data sheet and its contents are the
confidential and proprietary information of AOC and it may not be modified altered deconstructed or presented in any other manner without the explicit authorization of AOC and/or its legal counsel.
VICAST
A572-DH SERIES POLYESTER RESIN
PERFORMANCE GUID ELINES
A. Keep full strength catalyst levels
between 1.25% – 2.0% of the total res-
in weight.
B. Maintain shop temperatures be-
tween 65 F/18 C and 90 F/32 C
and humidity between 40% and 90%.
Consistent shop conditions contribute
to consistent gel times and will help
the fabricator make a high quality part.
STORAGE STABILITY
This product is stable for six
months from date of manufacture
when stored in the original con-
tainers away from sunlight at no
more than 70 F/21 C.
During the hot summer months, no
more than two months stability at
86 F/30 C should be anticipated.
After extended storage, some drift
may occur in gel time and viscosity.
SAFETY
See the appropriate Safety Data
Sheet for guidelines.
ISO 9001:2008 CERTIFIED
The Quality Management Systems at
every AOC manufacturing facility have
been certified as meeting ISO
9001:2008 standards. This certification
recognizes that each AOC facility has an
internationally accepted model in place
for managing and assuring quality. We
follow the practices set forth in this
model to add value to the resins we
make for our customers.
FOOTNOTES
(1) All tests at 77 F/25 C on unreinforced cured
resin castings. Thixotropic components, if applicable,
are excluded from casting samples. Castings were
prepared using 1.25% MEKP, 0.125% Cobalt 12%,
and post cured for 2 hours at 250 F/121 C using
AOC test method X-12Ab.
(2) The gel times shown are typical but may be affected by
catalyst, promoter, inhibitor concentration, resin, mold,
and shop temperature. Variations in gelling characteristics
can be expected between different lots of catalysts and at
extremely high humidities. Pigment and/or filler can retard
or accelerate gelation. It is recommended that the fabrica-
tor check the gelling characteristics of a small quantity of
resin under actual operating conditions prior to use.
Pub. Vicast A572-DH SERIES
Effective Date: June 2017
Copyright 2017