Polyurethane liquid casting rubber Shore A40 (poly 74-40)

The Poly 74-40 is a medium variant of Poly 74-Series polyurethane rubber. The 74-40 is a slightly harder variant of the 74-30. The mixing ratio is 2A: 1B and comparable to the Poly 74-30. The content os a set is much higher than the Poly 74-30 due to the mixing ratio.

Packaging: Set 3 kg, Set 15 kg, Set 54 kg
Hardness (Shore A): 40
Color: Varies
Mix Ratio: 2A:1B
Working Time (min): 20
Total Cure (hr): 16 hr (demold) / 7 days (100%)
Viscosity (cP): 3.400
Tensile Strength (N/mm2): 2.41 (349 psi)
Tear Strength (N/mm2): 16.64
Type product: Polyurethane rubber

Downloads

• TDS Poly 74-40
  
• MSDS Poly 74-40 Component A
• MSDS Poly 74-40 Component Base B

Information center

• Do I have to use Polyurethane or Silicone rubber to make my mold?