TASK 21

Unit Size	Net Weight
Pint Kit	3 lb
Gallon Kit	24 lb
Five Gallon Kit	120 lb

TASK21 is a performance urethane casting resin that has been described by many as having similar performance and mechanical characteristics to ABS plastic, with high compressive and flexural strength. TASK21 has no odor and is easy to process. Mix ratio is 2A:1B by weight or volume. Pot life is 6 minutes and handling strength is reached in 60 minutes at room temperature (depending on mass and configuration).
TASK21 features a low mixed viscosity of 500 cps and readily de-airs itself when cast into molds. SO-Strong or IGNITE colorants can be added for color and a variety of powder fillers can be added to alter performance or appearance characteristics.
Applications for TASK21 include rapid prototyping, casting strong and highly detailed models, making holding / assembly fixtures, figurines and decorative castings.
TASK21 cannot be cast into platinum silicone molds . TASK21 may be cast into tin-cure silicone or urethane rubber molds (using a release agent). PropertiesTechnical Properties

Mix Ratio by Weight	2A:1B
Mix Ratio by Volume	2A:1B
Pot Life	6 minutes
Cure Time	1 hour
Color	White
Shore Hardness	75D
Mixed Viscosity	500 cps
Shrinkage	0.0058 in./in.
Specific Volume	25.9 cu. in./lb.
Specific Gravity	1.07g/cc
Tensile Strength	5,500 psi
Elongation @ Break	7.5%
Compressive Modulus	78,500 psi
Tensile Modulus	270,000 psi
Flexural Strength	7,100 psi
Flexural Modulus	250,000 psi
Compressive Strength	7,100 psi
Heat Deflection Temp	144¼F

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Technical Bulletin

Special Order Items PRODUCT ADVISORY:
The products listed below are currently SPECIAL ORDER items and require pre order.
Lead times may vary - For more information please contact our staff.

798846 - TASK 21 - Five Gallon Kit
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