VIBRIN
G245MC
POLYESTER GEL COAT
POLYESTER GEL COAT FOR SPRAY
APPLICATIONS
Typical properties are not to be construed as specifications.
DESCRIPTION
Vibrin G245MC is a fully promoted,
thixotropic, isophthalic polyester gel-
coat for spray applications.
Consult the Color Selector for exam-
ples of colors available.
APPLICATIONS
Fast cure and superior process char-
acteristics make this product ideal for
general purpose applications includ-
ing tub/shower stall, transportation
and outdoor parts.
BENEFITS
Good UV stability
Low HAP content allows product
to meet Composites and Marine
MACT standard
Lower styrene emissions reduce
occupational exposures
Improved transfer efficiency with
less overspray generates less
waste
Excellent high gloss finish with
superior cosmetics
Resistance to cracking
Typical Liquid Properties
1
Test Unit of Measure Nominal
Viscosity @ 77 F/25 C, RVF Brookfield
Spindle #4 @ 20 RPM
cps 12,000-18,000
Thix Ratio 2:20 rpm 4.5-6.5
Gel Time @ 77 F/25 C,
(1.5% of a 9% active oxygen MEKP)
minutes 6.5-12.5
Exotherm Time
minutes 5-15
Exotherm Temperature
C 150-180
HAP Content
%
<30 White
<33 Colors
Typical Cast Mechanical Properties
2
Test Unit of Measure Nominal Test Method
Tensile Strength psi/Mpa 12,200/84 ASTM D 638
Tensile Modulus psi/Gpa 520,000/3.6 ASTM D 638
Tensile Elongation % 5.0 ASTM D 638
Flexural Strength psi/Mp a 21,100/145 ASTM D 790
Flexural Modulus psi/Gpa 550,000/3.8 ASTM D 790
Heat Distortion Temp. F/ C @ 264 psi 176/80 ASTM D 648
Elongation % 4.1(Y) 6.4(B ) ASTM D 638
AOC World Headquarters
955 Highway 57 East, Collierville, TN 38017
+01 901.854.2800
AOC-Resins.com
SALES CONTACTS
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northamerica@aoc-resins.com
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europe@aoc-resins.com
INDIA
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india@aoc-resins.com
LATIN AMERICA
+01 863 815 5016
latinamerica@aoc-resins.com
AOC UK LTD.
+44 01206 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 committing 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.
VIBRIN
G245MC POLYESTER GEL COAT
PERFORMANCE GUIDELINES
A. All AOC thixotropic polyester gel
coats should be mixed well prior to
use.
B. MEKP levels should be kept
between 1.0% and 2.5%
C. Gel coats should not be applied
below 64 F/18 C.
D. G245MC may require higher
ratio pressures to spray. 11:1
pumps may not be able to handle
G245MC in some cases.
ISO 9001:2008 CERTIFIED
The Quality Management Systems
at every AOC manufacturing facility
have been certified as meeting ISO
9001:2008 standards. This certifi-
cation recognizes that each AOC
facility has an internationally ac-
cepted model in place for manag-
ing and assuring quality. We follow
the practices set forth in this mod-
el to add value to the resins we
make for our customers.
FOOTNOTES
(1) The gel times shown are typical but may
be affected by catalyst, promoter, inhibitor
concentration, resin, mold, and shop temper-
ature. Variations in gelling characteristics can
be expected between different lots of cata-
lysts and at extremely high humidities. Pig-
ment 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 con-
ditions prior to use.
(2) Based on tests at 77 F/25 C and 50%
relative humidity. All tests performed on unre-
inforced castings. Thixotropic components
are excluded from casting samples. Castings
are post cured.
Pub. Vibrin G245MC
Effective Date: February 2018
Copyright 2018
STORAGE STABILITY
This product is stable for three
months from the date of manufac-
ture when stored in the original
containers, away from direct sun-
light or other UV light sources and
at or below 77 F/25 C.
Storage stability of two months or
less should be anticipated if the
storage temperature exceeds
86 F/30 C.
After extended storage, some drift
may occur in the product viscosity
and gel time.
SAFETY
See the appropriate Safety Data
Sheet for guidelines.