MEDIUM INFUSION EPOXY – A-298/B-225
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DESCRIPTION
Medium Infusion Epoxy is a two-component,
very low viscosity system developed specifically for use in resin infusion
and VARTM processes. Medium Infusion
Epoxy was formulated to provide for rapid saturation of carbon fiber
laminate, fiberglass, and Kevlar.
Processability parameters are enhanced due to Medium Infusion Epoxy’s
low mixed viscosity and wet-out potential.
This system is not designed to be used in open mold applications. HANDLING PROPERTIES
RESIN VISCOSITY, cP 1,044
ASTM
D 2196 RESIN DENSITY, lb./gal 9.49 ASTM
D 792 HARDENER VISCOSITY, cP 39
ASTM
D 2196 HARDENER DENSITY, lb./gal 7.78 ASTM
D 792 COLOR Clear
DENSITY, lb./gal 9.02
ASTM
D 792 MIX RATIO, pbv (pbw) 3/1 (3.65/1) MIXED VISCOSITY, cP 291
ASTM
D 2196 GEL TIME (200g), min 160 ASTM
D 2471 WORKING TIME*, min 120
*The
working time varies according to the temperature of the air, the epoxy and
the surface to which it is applied. Note:
Above viscosities/densities measured @ 77°F. PHYSICAL PROPERTIES
TENSILE STRENGTH, psi 10,300
ASTM
D 638 TENSILE MODULUS, psi 294,000 ASTM
D 638 ELONGATION @ BREAK, % 3.16 ASTM
D 638 COMPRESSIVE STRENGTH, psi 13,700 ASTM
D 695 COMPRESSIVE MODULUS, psi 263,000 ASTM
D 695 FLEXURAL STRENGTH, psi 17,300
ASTM
D 790 FLEXURAL MODULUS, psi 1,063,000
ASTM
D 790 HARDNESS, Shore D 88D
ASTM
D 2240 Cure
Cycle: 24hours @ Room Temperature + 8 hours @ 180°F. Test specimens for above were neat epoxy
(without fiber reinforcement). THERMAL PROPERTIES
Tg DMA Peak Tan Delta, °F (°C)* 232
(111) ASTM
1640 Tg DMA Onset Storage Modulus, °F (°C)* 94 (90) ASTM
1640 Heat Deflection Temperature, °F °(C) 195 (90.5) ASTM
648 Tg DSC Ultimate 207
(97.4) ASTM
E 1356 *1 Hz, 3°C
per minute. Cure
Cycle: 24 hours @ Room Temperature + 4 hours @ 250°F.
STORAGE INFORMATION
The storage temperature of Medium Infusion Epoxy will
greatly affect the ease of mixing, application and, curing time. For best results, Medium Infusion Epoxy should
be stored at (60-80 °F or 16-27 °C) for at least 24 hours before use. MIXING INFORMATION Mix RESIN
WITH (hardener) for 3 minutes using a Jiffy Mixer and a slow speed drill. Mix
at slow speed (less than 500 rpm) to avoid air entrainment. When adding part B to part A, be sure to
scrape the sides of the hardener (part B) container in order to remove all of
the hardener. This is essential to
maintain proper mix ratio. DO NOT mix more material than can be used within
the stated working time. REMEMBER - you will have less working time at higher
temperatures.
CRYSTALLIZATION INFORMATION
Crystallization of epoxy resin is not an uncommon occurrence;
in some cases, it is simply a reflection of the high-performance nature of
the material. Under the perfect
conditions, usually extreme temperature change, any epoxy resin can
crystalize. The crystallization may present itself as the resin becoming
cloudy all the way to the resin turning to a solid. Follow the following steps to restore a crystallized epoxy
resin to its normal state:
1)
Place resin container in warm water until the resin
reaches approximately 120-degrees Fahrenheit. (An easy way to achieve this
with normal household products is a crockpot) 2)
Keep epoxy resin at this temperature for several
hours. Mixing may be needed while warm
to dissolve all crystals. 3)
Allow the epoxy resin to cool back down to room
temperature before use. The resin
being warm can drastically change working times. 4)
Feel free to use this epoxy resin just as you
normally would.
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SAFETY PRECAUTIONS
Avoid
breathing of vapors. Forced local
exhaust is recommended to effectively minimize exposure. NIOSH approved, organic vapor respirators and
forced exhaust are recommended in confined areas, or when conditions (such as
heated polymers, sanding) may cause high vapor concentrations. DO NOT
WELD ON, BURN OR TORCH ON OR NEAR, ANY EPOXY MATERIAL. HAZARDOUS VAPOR IS RELEASED WHEN AN EPOXY IS
BURNED.
WARRANTY
AND DISCLAIMER
ICT/Venom Carbon gives no warranty, express or implied, and
all products are sold upon condition that purchasers will make their own tests
to determine the quality and suitability of the product ICT/Venom Carbon shall
be in no way responsible for the proper use and service of the product. The information given in this publication is
considered to be accurate and reliable and is provided as a service only. Physical properties shown are typical. Actual properties are dependent on curing
conditions and degree of cure. Any
information or suggestions given are without warranty of any kind and
purchasers are solely responsible for any loss arising from the use of such
information or suggestions. No
information or suggestions given by us shall be deemed to be a recommendation
to use any product in conflict with any existing patent rights.