Poly 74-20 Liquid Rubber

Poly 74-20 Liquid Rubber is a two-part, liquid polyurethane system that cures (RTV) to a yellow, Shore A20 rubber. This is the softest rubber in the Poly 74-Series line of polyurethane mold rubbers. Poly 74-20 is a pourable rubber, but it can be easily thickened with PolyFiber II Thickener for brush-on application.

WARNING: This product can expose you to chemicals including Toluene diisocyanate (TDI), which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.

FOR INDUSTRIAL/PROFESSIONAL USE ONLY.

TECHNICAL SPECIFICATIONS

• Mix Ratio by Weight: 1A:2B
• Shore Hardness: A20
• Pour Time: 20 min.
• Demold Time: 16 hr.
• Cured Color: Yellow
• Mixed Viscosity: 800 cP
• Specific Volume: 27.5 in³/lb
• Specific Gravity: 1.01
• Elongation: 1,060 %
• Tensile Strength: 217 psi
• Die C Tear Strength: 43 pli
• Notes: Shake or Stir Part B before use. The color of polyurethane Part Bs may change in color from batch to batch or may darken with age, but product performance is not affected.