We use it for general bonding of composite to composite and aluminum to composite. Very smooth and easy to mix to any viscosity ranging from catsup to peanut butter. The exceptionally smooth nature of the silica powder results in a stronger and less porous bonding filler than we've seen from West System colloidal silica or other silica fillers.
Test and plan for your vertical installation
Jan 7, 2017 | By Todd Duffett
When using the Thixotropic silica to bond a horizontal bulkhead to nearly vertical sides of my sailboat hull interior we had considerable difficulty due to the low viscosity of the mix at the recommended ratio of 3:1. We did not prepare a test batch before hand and therefore did not plan to use clay or some other form of a dam to control the slumping of the mix. Ended up using masking tape on the underside surface but it was quite a mess as a result. Perhaps the ratio needs to be reviewed or additional thickening agents should have been added for a vertical installation.
Owner Response: 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.