• Urethane Filler for Dimensional Stability

URE-FIL™ 7 mixes well with urethane resins and castable epoxies and will improve dimensional stability (reduce the shrinkage rate of some resins, for example). It is also often added to materials to make them flame-resistant. URE-FIL™ 7 can be mixed with Smooth-Cast™ 325 and SO-Strong™ colour tints to create marble effects. The maximum amount that you can add to a resin before compromising the physical properties of the cured plastic would be 1A:1B to 2 parts filler. A mix ratio of 1A:1B to 3 parts filler will make the plastic trowelable, but the cured plastic will also be brittle.

URE-FIL™  7 - Urethane Filler for Dimensional Stability

Smooth-On URE-FIL® fillers disperse easily in Smooth-On materials. They can be added to materials in different proportions to achieve a variety of working properties and effects. Some fillers are designed for cost-savings, others are designed for specific casting effects or improved physical properties. Other URE-FIL™ fillers are designed specifically for thickening materials for brush-on or trowelable application.

URE-FIL™  7 - Urethane Filler for Dimensional Stability


Resin Casting Tutorial: Creating a Marble Effect Using Urethane Plastic
How to Make a Faux Marble Resin Casting

Available Sizes

  • Gallon Kit
    *Vat Included
  • Net Wt: 4.54 kg

Product Questions

Total 1 question(s) page: 1

How can I eliminate bubbles from my castings?

Question submitted by: username | on: date time

Using a vacuum chamber or pressure pot will help in removing most to all bubbles from your castings. You can read more here.

Answer submitted by: username | on: date time

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