VICAST
A541-DH SERIES
POLYESTER RESIN
POLYESTER RESIN FOR CULTURED OYNX AND
MARBLE
Typical Cast Mechanical Properties
1
Test Unit of Measure Nominal Test Method
Tensile Strength psi 10,400 ASTM D 638
Tensile Modulus psi 610,000 ASTM D 638
Tensile Elongation % 2.1 ASTM D 638
Flexural Strength psi 18,500 ASTM D 790
Flexural Modulus psi 640,000 ASTM D 790
Heat Distortion Temp. F/ C @264 psi 140/60 ASTM D 648
Barcol Hardness 40 ASTM D 2583
Typical properties are not to be construed as specifications.
DESCRIPTION
Vicast A541-DH Series is a prepromot-
ed, non-thixotropic, polyester resin for-
mulation made for use in cultured mar-
ble, granite and onyx applications. This
product is specifically designed to give
good demold times in marble applica-
tions while maintaining good color in
onyx type castings, enabling the use of
only one resin for both marble and on-
yx. It can be used for both flat and con-
toured molds.
BENEFITS
Vicast A541-DH Series Polyester Resin
The cure rate of Vicast A541-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 A541-DH Series is
superior in a marble matrix, it also gives
a bright, clean translucency in matrixes
filled with standard onyx type fillers.
Vicast A541-DH Series has excellent
green strength for effective demold
times in cultured marble and onyx.
Typical Liquid Properties
2
Test Unit of Measure Nominal
Viscosity @ 77 F/25 C, LV SSA Brookfield
Spindle #4 @ 60 rpm
cps 1800
Color pink
Styrene Content % 29
Specific Gravity @77 F/25 C 1.15
Gel Time,77 F/25 C, 100g
1.0% M50 MEKP
minutes 9,15,20
Gel to Peak minutes 10
Peak Exotherm F 300
AOC World Headquarters
955 Highway 57 East, Collierville, TN 38017
+01 901.854.2800
AOC-Resins.com
SALES CONTACTS
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latinamerica@aoc-resins.com
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+44 1206 390400
salesUK@aoc-resins.com
ASIA/AUSTRALIA
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asia@aoc-resins.com
MIDDLE EAST
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middleeast@aoc-resins.com
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
A541-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
Resins are stable for four months
from date of production when
stored in the original containers
away from sunlight at no more
than 70 F/21 C.
After extended storage, some drift
may occur in gel time and viscosity.
During the hot summer months, no
more than two months stability at
86 F/30 C should be anticipated.
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 certifica-
tion 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 applica-
ble, are excluded from casting samples. Castings
were post cured.
(2.) The gel times shown are typical but may be affect-
ed by catalyst, promoter, inhibitor concentration, resin,
mold, and shop temperature. Variations in gelling char-
acteristics can be expected between different lots of
catalysts and at extremely high humidities. Pigment
and/or filler can retard or accelerate gelation. It is rec-
ommended that the fabricator check the gelling charac-
teristics of a small quantity of resin under actual operat-
ing conditions prior to use.
Pub. A541-DH Series
Effective Date: June 2017
Copyright 2017