Applications

Clear Casting Resin is an optically clear polyurethane casting resin used where a hard, UV resistant, non-yellowing product is required. Clear Casting Resin is often used to encapsulate objects. Some of the most common uses of Clear Casting Resin are point-of-purchase displays, rapid prototypes, special effects, sculpture reproductions, giftware, etc.

Characteristics;

Clear Casting Resin is a two-part polyurethane casting system. Clear Casting Resin is mixed one-to-one by volume and cures at room temperature. Cured Clear Casting Resin is UV resistant and non-yellowing. To preserve the surface clarity of Clear Casting Resin, we recommend that you use a platinum-cure or condensation-cure silicone mold material such as LifeRite.

Clear Casting Resin provides a combination of performance properties including optical clarity, mechanical strength, hydrolysis resistance, gloss retention, and yellowing resistance. Each user must individually determine the suitability of this product for the process intended; furthermore, the conditions under which parts are made must also be taken into consideration

Instructions for Use

Measure Curative and Pre-polymer

Note: Clear Casting Resin provides approximately 15 minutes for you to mix and pour the casting before it begins to gel.

Using two clean, dry, plastic containers of equal size, measure equal amounts of the curative (part A) and the pre-polymer (part B). Do not measure more Clear Casting Resin than you can pour within its 15 minute pot life. 

Mix Curative and Pre-polymer 

Note: Once you mix the curative and pr-epolymer, you have approximately 15 minutes to pour the casting.

After you prepare the mold and measure the curative and pre-polymer, you are ready to pour the curative and pre-polymer into another clean, dry, plastic container. Combine the two ingredients for approximately 45 seconds, being careful to prevent air bubbles from forming. Use a plastic or metal utensil to mix Clear Casting Resin. You can use a vacuum chamber to help remove any air bubbles that form during mixing.

Pour Casting

You should take your time to carefully pour it into the mold. The best way to pour a casting with Clear Casting Resin is to tilt your mold slightly and pour into one spot of the mold. Pour slowly so that any air bubbles that may have formed during mixing can break over the lip of the container as it pours out. When you have finished pouring your casting, you may tap the sides of the mold or vibrate the mold to help release additional air bubbles.

Demold and Cure Casting

Once you have poured your casting, do not disturb the mold or demold the casting for 24 hours. Although you may work with your cast immediately after demolding, for best results we strongly recommend that you post cure your cast for 6 hours at 160°F (72°C).  The post cure improves the heat distortion temperature as well as numerous other properties of the material.

Properties