PlatSil® 73-25 Silicone Rubber is a two-part, platinum-catalyzed, liquid silicone system that cures (RTV) to a green, Shore A25 rubber. This is a pourable rubber, but it can be easily thickened with PlatThix Liquid Thickener or Fumed Silica for brush-on application. The yellow colored Part A and green colored Part B make it easy to see when mixing is complete. A uniform, light, lime-green color means you’re good to go!
Technical Specifications
Mix Ratio by Weight:1A:1B
Shore Hardness:A25
Pour Time:15 min.
Demold Time:4-5 hr.
Cured Color:Green
Mixed Viscosity:6,000 cP
Specific Volume:24.3 in³/lb
Specific Gravity:1.14
Elongation:405 %
Tensile Strength:380 psi
Die B Tear Strength:120 pli
Die T Tear Strength:30 pli
Notes:Shake or stir Part A & Part B before use.
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
Kit Components
| PlatSil® 73-25 |
Components |
| 2-lb kit includes: |
1 lb of PlatSil® 73-25 Part A (~1 pint)
1 lb of PlatSil® 73-25 Part B (~1 pint) |
| 16-lb kit includes: |
8 lb of PlatSil® 73-25 Part A (~1 gallon)
8 lb of PlatSil® 73-25 Part B (~1 gallon) |
| 80-lb kit includes: |
40 lb of PlatSil® 73-25 Part A (~5 gallons)
40 lb of PlatSil® 73-25 Part B (~5 gallons) |
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