Prevent Sags on Vertical Surfaces
A white, free-flowing powder, Thixotropic Silica is a thickening agent primarily added to resin to prevent run-off and sags on vertical surfaces.
- Use with an epoxy to produce extremely hard, solid parts, perfect for structural bonding, filling, and filleting.
- Use in conjunction with chopped glass fiber for added strength for parts.
- Silica-filled resin can be difficult to sand. Consider using #22 Glass Microspheres for areas that require sanding.
This filler is compatible with epoxy, polyester, and vinyl ester resin systems. Add filler after adding catalyst to resin.
Mix ratio is 1:2 (filler to resin by volume) for general use, 1:3 (filler to resin by volume) to reduce runs/sagging.
Thanks for the review! We are sorry that the product did not perform to your expectations. The mix ratio can be customized to your application, and can vary due to differences in climate and resin used. We recommend on the product data sheet a General Use ratio of 1:2, and a Vertical/Overhead ratio of 1:3. Thanks to your review, we will also better clarify this on the product label.
Silica is available in a variety of sizes:
One 1/2 gallon (#23-A)
One carton (#23-B)
One bag (#23-C)