PolyFoam R-2 is a two-part, rigid polyurethane casting foam. This self-skinning foam has a free-rise density of 2 lb/ft³, but should be cast at a density of 4 to 8 lb/ft³ to achieve good surface detail and mold fill. Generally, PolyFoam products should be cast in TinSil® or PlatSil® silicone molds. Barrier coats (e.g., a fast-drying primer paint) can be applied to silicone molds before casting foam in order to produce pre-primed parts right out of the mold. These foams can also be poured into Poly 74 & 75-Series polyurethane rubber molds that have been coated with PolyCoat Sealer & Release Agent.
PolyFoam™ Series Casting Foams consist of liquid Parts A and B that, after mixing, form self-skinning foams. PolyFoams can be used to cast rigid or flexible objects with densities in the range of 3 to 20 lb/ft3. Consider PolyFoams for production of decorative objects, light-weight mold shells, production parts, models, patterns, fixtures, duplicate masters and general tooling use. PolyFoam systems are practically odorless and do not contain toluene diisocyanate, MOCA, heavy metals or HCFCs. PolyFoam R-2, R-5 and R-8 are rigid foams. PolyFoam F-5 is flexible for casting soft parts.
- Cream Time - 30 sec
- Rise Time - 3 min
- Demold Time - 30 min
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