Poly 74-45 Liquid Rubber is a two-part, liquid polyurethane system that cures (RTV) to a yellow, Shore A45 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 www.P65Warnings.ca.gov.
Technical Specifications
Mix Ratio by Weight:1A:1BShore Hardness:A45Pour Time:30 min.Demold Time:16 hr.Cured Color:YellowMixed Viscosity:2,000 cPSpecific Volume:27.5 in³/lbSpecific Gravity:1.02Elongation:1,135 %Tensile Strength:408 psiDie C Tear Strength:82 pliNotes: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.
Technical Bulletin
Safety Data Sheet – Part A
Safety Data Sheet – Part B
| Poly 74-45 | Components |
|---|---|
| 4-lb kit includes: | 2 lb of Poly 74-Series Part A (~1 quart) 2 lb of Poly 74-45 Part B (~1 quart) |
| 16-lb kit includes: | 8 lb of Poly 74-Series Part A (~1 gallon) 8 lb of Poly 74-45 Part B (~1 gallon) |
| 80-lb kit includes: | 40 lb of Poly 74-Series Part A (~5 gallons) 40 lb of Poly 74-45 Part B (~5 gallons) |
