Smooth-On offers a wide variety of liquid plastic casting resins used for hundreds of different applications. Good for industrial, art-related and hobbyist projects, they are available as rigid or semi-rigid resins. These polyurethane casting plastics are used for making detailed models & prototypes, props and industrial parts. Colors and/or fillers can be added for an infinite variety of casting effects.

The 300 series are ultra-low viscosity resins yielding castings that are bright white. The 325 series were developed for adding color and are ideal for creating marble and wood grain casting effects.

Smooth-Cast 65D and 57D have a unique gradual cure profile, making them ideal for rotational casting applications.

Feather Lite® plastic is so light it floats on water and is ideal for prototype model making, fishing lures, casting figures and more.

SMASH! Plastic™ is a liquid plastic designed to shatter/crumble on impact (“breakaway glass”).

The TASK™ series is a specialty line of performance urethane casting resins offer superior physical properties compared to their popular Smooth-Cast™ line of general purpose casting resins.

TASK™ plastics feature convenient mix ratios by volume (pbv) or weight (pbw), low viscosities, high tensile and flexural strength, as well as high flexural modulus. Some have specific performance characteristics such as flame resistance, high temperature resistance, and very high impact resistance.

Product specifications