PlatSil® FS-20 Silicone Rubber
PlatSil® FS-20 (Fast-Setting) Silicone Rubber is a two-part, platinum-catalyzed, liquid silicone system that cures (RTV) to a milky white, Shore OO66/A20 rubber. This product offers a simple 1A:1B mix ratio (by weight or volume), a fast demold time of ~25 minutes, and a long pour time (~8 minutes) relative to its cure speed. This allows for fast turn-around of molds and parts with sufficient time to mix and pour. Heat can be used to further accelerate the cure.
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 Volume:
- 1A:1B
- Mix Ratio by Weight:
- 1A:1B
- Shore Hardness:
- A20
- Pour Time:
- 8 min.
- Demold Time:
- 25 min.
- Cured Color:
- Milky White
- Mixed Viscosity:
- 3,800 cP
- Specific Volume:
- 24.9 in³/lb
- Specific Gravity:
- 1.11
- Elongation:
- 626 %
- Tensile Strength:
- 467 psi
- Die B Tear Strength:
- 148.2 pli
- Die T Tear Strength:
- 52.8 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.
More Information
PlatSil® FS-20 | Components |
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2-lb kit includes: | 1 lb of PlatSil® FS-20 Part A (~1 pint) 1 lb of PlatSil® FS-20 Part B (~1 pint) |
16-lb kit includes: | 8 lb of PlatSil® FS-20 Part A (~1 gallon) 8 lb of PlatSil® FS-20 Part B (~1 gallon) |
80-lb kit includes: | 40 lb of PlatSil® FS-20 Part A (~5 gallons) 40 lb of PlatSil® FS-20 Part B (~5 gallons) |