ATC Poly-Fair F26

F26 is a water resistant, low-density polyester-based fairing compound. F26 has good adhesion to cured fiber-reinforced polyester and vinylester laminates.  F26 sands easily, gives a hard finish after a full cure, yet is not brittle and has good impact strength. F26 is a suitable base for all marine finishes such as polyester, urethane and epoxy paints.

F26 is often covered, prior to painting, with sprayable polyester-based primer Poly-Fill to hide surface imperfections and pinholes in order to obtain a high-quality finish. Below the waterline, F26 must be covered with epoxy bottom paints, or with Poly-Fair F24VE, the vinylester version of F26. F26 fairing compound is used primarily in the boat building and fiberglass fabrication industries for fairing and sanding plugs, molds, one-off custom boats, fairing of lead keels (if not coated with epoxy), fairing of keel-to-hull joints, repair of damaged fiberglass parts and mold re-work or modification. Sold by the 5 gallon pail. Requires MEKP to catalyze (sold separately).