KX Flex Elastomer 40

SKU: 803411

Size: Pint Kit
Sale price$43.95

unit(s) in Stock.


unit(s) in Stock.


unit(s) in Stock.

*Price and availability may vary.


Unit Size Net Weight
Pint Kit 2 lb
Gallon Kit 16 lb
Five Gallon Kit 80 lb



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, UVOª or IGNITEª 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.

Cured KX Flex 40 will have a slight tack which will subside over time depending on mass and ambient temperature.
Technical Properties
Mix Ratio by Weight 1A:1B
Mix Ratio by Volume 1A:1B
Pot Life 2.5 minutes
Tack Free Time 30 minutes
Cure Time 25 hours
Color Translucent White
Shore Hardness 40 A
Mixed Viscosity 800 cps
Shrinkage 0.002 in/in
Specific Volume 25.9 cu.in./lb
Specific Gravity 1.07 g/cc
Tensile Strength 457 psi
Elongation @ Break 400%


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

803413 - KX Flex Elastomer 40 - Five Gallon Kit

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