Microballoons, or glass microspheres, are a lightweight way to make epoxy fairing compounds. Easy to spread, and easy to sand, they work great!
- These bulking agents are hollow, clear microscopic spheres that make a low-cost, low density filler
- Add to epoxy resin and hardener mix to 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