PT Flex 70 Liquid Rubber is a two-part, liquid polyurethane system that hardens (RTV) into a yellow / orange Shore A70 rubber. PT Flex series rubbers were specifically designed for prototyping and model building applications and offer fast casting times (approx. 4 minutes), fast curing times (approx. 2 hours) and low viscosity of 680 cP.
The PT Flex 70 is a hard p.u. rubber similar to the hardness of a car tire. The PT Flex 85 is a harder version of the PT Flex 70 and the PT Flex 60 is a softer version. The PT Flex series can easily be poured into the Eurosil addition silicone without using a release agent.
For slower versions, consider the rubbers from the Poly 75 series. A wide choice of rubbers with a Shore A 60 to Shore A 90.
Packaging: Set 7,3 kg A+B, Set 2 kg
Hardness (Shore A): 70
Mix Ratio: 1A:1B (by weight)
Total Cure (hr): 0.5 @ 70 °C / 1,5
Type product: Polyurethane rubber