Flexon PUR liquid Polyurethane rubber is room temperature cure, mid-range to firmhardness (Shore A40-90), high-performance. They offersuperior strength, toughness, and abrasion-resistance that result in durable molds that capture andreproduce exacttextures and the fnest detail from any model. 1) Two-part polyurethane rubbers High hardness A40 – A90, which silicone rubber unable to reach 2) Super-strength, 3 times stronger than silicone rubber, high abrasion-resistant, super-tough rubbers 3) Reproduces fine details and textures Long-lasting, economical 4) Ideal for high volume casting applications All rubbers can be demolded after ~16 hours