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:1BMix Ratio by Weight:1A:1BShore Hardness:A20Pour Time:8 min.Demold Time:25 min.Cured Color:Milky WhiteMixed Viscosity:3,800 cPSpecific Volume:24.9 in³/lbSpecific Gravity:1.11Elongation:626 %Tensile Strength:467 psiDie B Tear Strength:148.2 pliDie T Tear Strength:52.8 pliCure 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
| PlatSil® FS-20 | Components |
|---|---|
| 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) |
