PlatSil® 71-40 Silicone Rubber is a two-part, platinum-catalyzed, liquid silicone system that cures (RTV) to a translucent, Shore A40 rubber. This is a pourable rubber, but it can be easily thickened with PlatThix Liquid Thickener or Fumed Silica for brush-on application.
FOR INDUSTRIAL/PROFESSIONAL USE ONLY.
Technical Specifications
Mix Ratio by Weight: 1A:10B
Shore Hardness: A40
Pour Time: 90 min.
Demold Time: 24 hr.
Cured Color: Translucent
Mixed Viscosity: 38,000 cP
Specific Volume: 26.6 in³/lb
Specific Gravity: 1.04
Elongation: 296 %
Tensile Strength: 438 psi
Die B Tear Strength: 98.6 pli
Die T Tear Strength: 32.9 pli
Cure Inhibition: Contamination from sulfur (e.g., sulfur-based clay), amines, tin compounds, cured polyester resin, some paints and some silicone rubbers may inhibit surface cure of platinum-cured rubbers.
Technical Bulletin
Safety Data Sheet - Part A
Safety Data Sheet - Part B
Kit Components
| PlatSil® 71-40 |
Components |
| 9-lb kit includes: |
0.9 lb of PlatSil® 71-40 Part A (~1 pint)
8.1 lb of PlatSil® 71-40 Part B (~1 gallon) |
| 44-lb kit includes: |
4 lb of PlatSil® 71-40 Part A (~2 quarts)
40 lb of PlatSil® 71-40 Part B (~5 gallons) |
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