Creates a multipurpose adhesive, excellent for bonding wood A fine fiber blend used as a thickening additive with resin/hardener to create a multipurpose adhesive, especially for bonding wood. Epoxy thickened with microfibers provides good gap-filling qualities while retaining excellent wetting and penetrating capabilities. Off White.More details about product #403 Microfibers #403 Microfiber Filler - 20 LB