Discover the Unparalleled Flexibility and Durability of TASK™ 4 Polyurethane Casting Resin

For prototype and design professionals seeking exceptional strength, detail, and versatility, TASK™ 4 from Smooth-On is the ultimate polyurethane casting resin. This innovative material is specifically designed for casting ultra-thin sections, ranging from 0.03” to 0.50” (0.075cm to 1.27cm), with unparalleled accuracy and precision. With its extremely low mixed viscosity, TASK™ 4 ensures flawless pick-up of even the finest details, making it an ideal choice for creating intricate models, miniatures, and prototypes.

One of the key benefits of TASK™ 4 is its remarkable strength, derived from its low shrinkage properties, which ensures that the cured plastic retains its original shape and dimensions. This, combined with its high durability and resistance to moisture, mild solvents, and moderate heat, makes it an ideal material for various applications. Whether you're creating architectural models, model toys, or special effect props, TASK™ 4 is the perfect solution.

For optimal results, TASK™ 4 is best used in a warm environment (73°F/23°C) with clean, dry mixing tools and containers. A release agent is necessary to facilitate demolding, and applying a liberal coat of release agent to all surfaces that will contact the plastic is essential. Mixing the resin and hardener in a 1:1 ratio by weight is crucial, and thorough mixing is necessary to achieve a strong, durable bond.

Curing takes approximately 16 hours at 73°F/23°C, and the material can be machined, painted, or bonded to other surfaces once fully cured. For added convenience, TASK™ 4 can be tinted or pigmented with SO-Strong™ color tints, allowing for vibrant colors and stunning visual effects. With proper post-curing, TASK™ 4 castings can achieve maximum physical properties and heat resistance, making them suitable for outdoor display.

In summary, TASK™ 4 from Smooth-On is a versatile, high-performance polyurethane casting resin that offers unparalleled strength, accuracy, and durability. Its extensive range of applications, combined with its ease of use and exceptional results, make it an essential tool for prototype and design professionals, architects, and model makers.