KX Flex™ 40 is a fast setting urethane casting elastomer that cures quickly to a flexible, highly impact resistant elastomer. KX Flex™ 40 is Translucent White and easy to color using SO-Strong™, UVO™ or IGNITE™ colorants.

KX Flex™ 40 has a pot life of 2.5 minutes and handling time of 30 minutes (depending on mass). With a Shore value of 40A, this urethane 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.