These bulking agents are hollow glass microspheres 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.
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