HEF Elasto-Flex is a unique formulated copolymer surfacing that offers excellent flexibility at low temperatures while maintaining good strength, modulus, and tear resistance. It is a two part, 100% solids (no solvent epoxy resin/hardener) allows a 1:1 formulation/mix ratio. Its resilient nature makes it suitable for flexible flooring joint sealants, crack bridging and secondary containment membranes.