Poly LiteCast Liquid Plastic

casting plastic with wood-like densityPoly LiteCast is a 1A:1B mix, polyurethane liquid casting plastic for making rigid and lightweight decorative moldings, tools, models, patterns, fixtures, duplicate masters, mold shells and more. It is often used as a lightweight casting alternative to plaster and concrete.

Poly LiteCast has a density similar to wood. It drills, sands and machines very readily (contains no silica fillers).


  • Reproduces fine detail
  • Can be machined, drilled, sanded (contains no silica)
  • Great for millwork/molding, décor, props and more
  • Can be colored with PolyColor Dyes
  • Add PolyFiber II for brush-on or trowel application
  • Lightweight alternative to plaster and concrete


For a lightweight, machinable polyurethane plastic with slightly more flexibility than Poly LiteCast, consider Poly Plasti-Flex Casting Resin.


Mix Ratio Shore Hardness Pour Time Demold Time Cured Color Mixed Viscosity Specific Gravity Specific Volume Maximum Exotherm
1A:1B by weight or volume D55 5 min. (1-lb mix) 1 hr. Tan 2,480 cP 0.78 35 in³/lb 251°F (2-lb mass)
Accessories: Poly 15 Part X Accelerator, PolyColor Dyes, PolyFiber II, Poly Purge Aerosol Dry Gas,

Product Literature: Poly LiteCast & Poly Plasti-Flex Technical Bulletin | Safety Data Sheets | Poly LiteCast & Poly Plasti-Flex Physical Properties Bulletin | Sealer & Release Agent Selection Guide


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