Poly GlassRub 50 Liquid Rubber is a two-part, liquid polyurethane system that cures (RTV) to a Glass-Like/Blue-Clear, Shore A50 rubber.
 
GlassRub 50 is often used to make clear molds that can be cut away from a master with less chance of damage and better seam positioning since objects are visible through the rubber.
 
In addition, GlassRub is used to make decorative rubber castings and art, as well as for encapsulating objects for intriguing display applications. With the addition of PolyColor Dyes, GlassRub can be used to create transparent parts of any color.