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Poly 77-Series Liquid Mold Rubbers

Poly 77-Series Mold RubbersPoly 77-Series polyurethane liquid mold rubbers are mid-range to firm hardness, high-performance, high elongation, room temperature curing systems. Although 74-Series & 75-Series liquid rubbers are our most popular mold rubber options, 77-Series rubber is sometimes selected for the following reasons: lower viscosity and higher elongation than rubbers of the same hardness in other series.

These rubbers are commonly used in the following applications: Concrete Casting, Architectural Reproduction & Restoration, Industrial Applications, Theming & Display, and much more. Plaster and wax can generally be cast in polyurethane molds without any release agent, but most concrete mixes and polyurethane resins require a suitable release agent (e.g., Pol-Ease® 2300 Release Agent).

View all product options within this series under "Product Options" below: