Poly 74-40 Liquid Rubber is a two-part, liquid polyurethane system that cures (RTV) to a Shore A40 rubber. This 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 .
Technical Specifications Mix Ratio by Weight:2A:1B Shore Hardness:A40 Pour Time:20 min. Demold Time:16 hr. Cured Color:Varies Mixed Viscosity:3,400 cP Specific Volume:27.5 in³/lb Specific Gravity:1.01 Elongation:400 % Tensile Strength:349 psi Die C Tear Strength:95 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. Kit Components| Poly 74-40 | Components |
|---|---|
| 24-lb kit includes: | 16 lb of Poly 74-Series Part A (~2 gallons) 8 lb of Poly 74-40 Part B (~1 gallon) |
| 120-lb kit includes: | 80 lb of Poly 74-Series Part A (~10 gallons) 40 lb of Poly 74-40 Part B (~5 gallons) |