PlatSil® 73-45 Silicone Rubber
PlatSil® 73-45 is a 1A:10B mix, mid-range hardness (A45), platinum silicone mold rubber. Molds made with this rubber have long mold life, high chemical resistance and no shrinkage on cure. PlatSil 73-45 molds have great release properties and, in most cases, do not require the use of release agents when casting.
Cured PlatSil 73-45 rubber has the highest tensile strength, tear strength, and elongation (%) properties in the PlatSil 73-Series. It also has the longest pour time (60 min).
This rubber is great for making molds for all types of resin casting (polyurethane, polyester, epoxy) and foam casting. Often used for prototyping, model making, high density polyurethane foam casting, and much more. A very popular rubber for casting foam architectural millwork, pots, plaques and other foam décor items.
Pour PlatSil 73-45 as supplied or thicken for brush-on molds using PlatThix liquid thickener.
|Mix Ratio||Shore Hardness||Pour Time||Cured Color||Mixed Viscosity||Specific Volume||Demold Time|
|1A:10B||A45||60 min.||Green||35,000 cP||21.3 in³/lb||16 hr.|
|Accessories: PlatThix Liquid Thickener, PlatSil® 71/73 Part R Retarder, Silicone Fluid 50cs, PlatSil® 71/73 Part X Accelerator|