PlatSil FS-20 Silicone Rubber - Fast-Setting

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.