Polytek PlatSil® 73-20

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PlatSil® 73-20 Silicone Rubber is a two-part, platinum-catalyzed, liquid silicone system that cures (RTV) to a blue translucent, Shore A20 rubber. Compared to other silicones in the PlatSil® 73-Series line, this option sets quickly with a demold time of 1 hour (at room temperature). The transparency of PlatSil® 73-20 is useful for molds that need to be cut after cure – parting lines can be better determined because the model is visible. This is a pourable rubber, but it can be easily thickened with PlatThix Liquid Thickener or Fumed Silica for brush-on application.


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