Flex 20 Flexible Urethane Rubber

Flex 20 is a soft yet tough urethane rubber designed for high-detail casting, prototyping, and mold-making. With a shore hardness of 20A, it offers maximum flexibility while maintaining excellent tear strength and durability. This makes it perfect for automotive, medical, and gasket applications, as well as custom molds and soft rubber parts. Its low viscosity ensures incredible detail reproduction, and vacuum or pressure casting is recommended for bubble-free results.

Whether you need a highly flexible rubber for gaskets, medical parts, or intricate molds, Flex 20 delivers precision, durability, and ease of use! 

Color Ivory

Mixed Viscosity 520cP

Mix Ratio 1:1 by weight or volume

Working Time 4 min

Demold Time 2 hours 

Cure Time 72 hr

Hardness 20A

Tensile Strength 250

Tear Resistance 50

Elongation % 770