When it comes to achieving specific working properties and effects in your materials, having the right filler can make all the difference. That's where Smooth-On URE-FIL™ 3 comes in - a ceramic filler designed to be added to urethane resins and castable epoxies to reduce cost without compromising on quality. With its ability to disperse easily in Smooth-On materials, this filler offers a unique advantage in achieving the desired results.

One of the standout features of URE-FIL™ 3 is its versatility. It can be added to materials in different proportions to achieve a variety of effects, making it an ideal choice for professionals and hobbyists alike. Whether you're looking to reduce costs or achieve specific casting effects, this filler is up to the task. Plus, its recommended starting mix ratio of 1A to 1B to 1 part URE-FIL™ 3 makes it easy to integrate into your workflow.

To get the most out of URE-FIL™ 3, it's essential to follow the correct mixing instructions. Start by thoroughly dispersing the filler in liquid rubber or resin to a uniform consistency. When adding large concentrations of filler, it's recommended to add the filler to completely mixed rubber or resin - combine both parts A and B of rubber or resin, mix thoroughly, then add filler. Mix the filler in and confirm that there are no lumps of filler present. Additionally, employing the ‘double-mix and pour’ technique can produce better results.

However, it's crucial to guard against moisture when working with powder fillers like URE-FIL™ 3. Atmospheric moisture can react with urethane materials, leading to bubbling or foaming in your resin/filler mix. To remedy this, simply line a cookie sheet with foil and spread the filler evenly over the cookie sheet at 3/8”-1/2” thickness (0.95 cm-1.25 cm). Place it in an oven on warm setting (150°F / 60°C) and bake for 4 hours. Remove the cookie sheet from the oven, let the filler cool to room temperature before mixing with urethane materials.

Proper storage is also critical to prevent moisture absorption. To avoid issues, use URE-FIL™ 3 as quickly as possible after purchasing. When decanting the filler, replace the lid immediately, and avoid leaving the container opened for more than a minute. If you need to store the filler for prolonged periods, consider obtaining desiccant pouches and placing one or two in the container. Replace the used desiccant pouches every other time you open the container, and make sure the container lid is secure before storing.

With Smooth-On URE-FIL™ 3, you can achieve professional-grade results without breaking the bank. By following the recommended mixing instructions and taking steps to guard against moisture, you can unlock the full potential of this ceramic filler. Whether you're working on a small project or a large-scale production, URE-FIL™ 3 is the perfect addition to your toolkit.