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KX Flex™ 90

KX Flex™ 90 Technical Specifications

Fast Setting Urethane Casting Elastomer

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All Technical Data

KX Flex™ 90
Product Type
  • Urethane Rubber
  • Urethane Resins
Mixed Viscosity800 cps
Mix Ratio By Weight100A:120B
Pot Life2.5 minutes
Handling Time30 minutes
Cure Time24 hours
Shore A Hardness90
Specific Gravity1.15 g/cc
Specific Volume24.1 cu. in./lb.
ColorOff-White
Tensile Strength1,800 psi
Elongation @ Break125 %
Shrinkage0.005 in. / in.

Product Description

KX Flex™ 90

KX Flex™ Series urethanes are fast setting flexible urethane casting elastomers that cure quickly and offer exceptional physical and performance properties including high impact resistance. KX Flex™ Series urethanes are easy to color using SO-Strong™, UVO™ or IGNITE™ colorants. KX Flex™ urethanes are phthalate free, mercury free and MOCA free.

KX Flex™ Series urethanes have a pot life of 2.5 minutes and handling time of 30 minutes (depending on mass). With Shore hardness values of 40A, 60A and 90A, this material is used for a variety of applications including fast mold making, fast model duplication, prototyping, durable miniatures, props and special effects, or making parts that are impact resistant. Fully cured castings are flexible, tough and durable.

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