Polyurethane Liquid Casting Plastics
Polytek®'s two-part, room-temperature curing polyurethane plastics are available in varieties that can be poured, brushed or sprayed to create castings with unlimited versatility.
These plastics are separated into six different series, highlighted below. From super low-viscosity, fast-setting resins to water-clear options, almost any color, size, shape, weight and appearance can be achieved by using these systems. Utilize available accessories to help achieve the desired look and feel.
Polyurethane casting plastics can be cast in silicone mold rubbers without any release agent, but require a release agent when cast in polyurethane rubber molds.
Select a series below to view individual options within each series:
Product Line Features
- Polytek’s easiest-to-use and best-selling rigid casting plastics
- Super low-viscosity systems designed for pouring, rotocasting & slush-casting
- 1A:1B mix ratios by volume
- Fast demold times (as fast as 15 minutes)
- Options for pouring, rotocasting and slush casting, and spraying
- Opaque and translucent options
- Can be easily thickened with PolyFiber II for brush-on application
- A clear, light yellow/amber option is available, which is ideal for color casting or filler applications such as cold cast bronze
- Can be colored using PolyColor Dyes
- Can be machined, drilled, sanded
Product Line Features
- Kast Series products are high-performance urethane resins designed for use in a variety of applications including foundry, special effects, prototyping, vacuum and thermo-forming, and many other industrial and commercial applications.
- Two-part polyurethane resins
- Room temperature curing (RTV)
- Shore Hardness Options: D83-D85
- Tough, non-brittle
- 1A:1B mix ratios by weight or volume
- Low-viscosity
- Reproduces fine detail
- Can be machined, drilled, sanded
- Low shrinkage on cure
- Fast demold times
Product Line Features
- Water clear, non-yellowing urethane casting resins for applications demanding optically clear castings
- Mercury-free formulas available
- Vacuum or pressure casting is recommended for bubble-free castings
- Can be colored with PolyColor Dyes to create clear, colored parts
Product Line Features
- Poly 15-Series plastics can be used to make thermoplastic-like, stone-like or pewter-looking parts
- Certain options in this series can be thickened with PolyFiber II for making lightweight mold shells or hollow/lay-up castings
- Many 1A:1B mix ratio options
- This series includes Poly 15-3 and Poly 15-3X Liquid Plastics, which feature the least amount of shrinkage in castings compared to other Polytek® polyurethane casting plastics
- Can be colored using PolyColor Dyes
- Can be machined, drilled, sanded
A low-density, wood-like casting resin, which is easily carved, cut, sanded and drilled.
A low-density, slightly flexible plastic that can be used to make decorative trim, props or impact resistant parts.
