High strength structural filler for repairs to hulls, decks and general areas on boats. Two-component vinylester filler has short-strand fibers for structural repairs. Reduces water absorption andosmotic blister damage. Includes hardener.Key featuresHigh-Strength repair fillerReduces water absorption and osmotic blister damageShort strands of fiberglass reinforce strength of fillerComes with 3M marine cream hardenerAllows application of vertical surfacesNon-staining and non-shrinking formulaSpecificationsFormulation: Two-part reinforced vinylester fillerRecommended Usage: Filling osmotic blisters, keel/rudder damage; bonding core material and hardwareAdditives: Reinforced with short-strand fiberglassCure Time: 15min. working time; Sandable in 3-4hrs.