Pettit Paints H2 Prime is a waterborne, two-part epoxy adhesive primer. The low VOC formula is recommended for use above or below the waterline on properly prepared substrates such as epoxy resins, fiberglass, polyester and vinylester gelcoats, wood, concrete, and many previouslyx90painted surfaces. Its tenacious bond to bare fiberglass and most other substrates makes H2Prime an excellent under-coater for all Pettit solvent and waterbased topside and antifouling paints. Extended overcoating times provides much easier scheduling and a lower chance of application failure due to missed windows. As a topside primer, H2Prime can be easily sanded when cured, effectively filling scratches and imperfections. H2Prime will also seal fairing or other filler work prior to top-coating or application of antix90fouling paint. Cleans up with soap and water Part of Pettits no-sand fiberglass system Modern technology provides lower VOC and low odor Flexible recoat windows takes the guesswork out of overcoating Provides excellent adhesion to polyester and vinylester gelcoats, as well as epoxiesSize: Gallon