Polygel® Spray 50 Rubber
Polygel® Spray 50 is a Shore A50, 1A:1B mix, spray-on, polyurethane liquid mold rubber designed for making thin, flexible molds of larger, complex originals. When low-viscosity Part A and Part B are mixed together using a portable Plas-Pak sprayer or more sophisticated spray equipment, the mixture self-thickens to a creamy consistency ideal for quickly creating blanket or glove molds of complex objects.
Great for casting plaster, concrete, as well as resins and foams with suitable releases. Polygel Spray rubbers allow molds to be made in one application.
For a self-thickening brush-on rubber for smaller mold making projects, consider Polygel 35 Brush-On Rubber.
NOTE ON FOUNDRY WAXES: Certain foundry waxes can cause excessive oiling in Polygel rubbers; this is the case when liquid Polygel is applied to the foundry wax and when the foundry wax is poured into cured Polygel molds. Perform a small test cure to ensure compatibility.
|Mix Ratio||Shore Hardness||Pour Time||Cured Color||Mixed Viscosity||Specific Volume||Demold Time|
|1A:1B||A50||5 min.||Green||Medium Thixotropic||27.5 in³/lb||~16 hr.|
|Accessories: PolyFiber II Thickening Agent, PolyColor Dyes, Tietex® Fabric, Poly Purge Aerosol Dry Gas|