These bulking agents are hollow, clear microscopic spheres that make a low cost, low density filler. Added to epoxy resin and hardener mix, they make a good, heat-resistant, light-weight fairing compound with good compres...

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Product Review

These bulking agents are hollow, clear microscopic spheres that make a low cost, low density filler. Added to epoxy resin and hardener mix, they make a good, heat-resistant, light-weight fairing compound with good compressive strength. Mixture can be blended with a small amount of Silica Thickener to prevent sagging. Not recommended for glue. Alternatively use SilverTip QuikFair for ease-of-use.



  • Glass Microspheres: These bulking agents are hollow, clear microscopic spheres that serve as a low-cost, low-density filler; Use as epoxy thickener
  • Versatile Application: When added to epoxy resin and hardener mix, they make a good, heat-resistant, light-weight fairing compound with good compressive strength
  • Measure And Mix: Mix the desired amount of resin and hardener, add glass microspheres in increments, and mix thoroughly by stirring from the bottom to the top until the desired consistency is reached
  • Extra Features: Glass Microspheres can be blended with a small amount of fumed silica thickener to prevent sagging in you epoxy system
  • Tips And Tricks: Clean hands, exposed skin, and work surfaces with mild soap and water

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