What is the weight of silica in one quart of TotalBoat Silica Thickener? Eric Boudreau January 15, 2021 14:22 Updated One quart of TotalBoat Silica Thickener contains roughly 55 grams (1.94 ounces) of silica.* *This weight is based upon low humidity conditions; weights may vary. Related articles Are the TotalBoat Microballoons considered fine like the MAS Microballoons? What adhesives are recommended for King StarBoard®? What happens to epoxy when it has been stored under cold conditions? Is sanding between coats required when applying Pettit Hydrocoat? Comments 0 comments Please sign in to leave a comment.