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3M Reinforced Filler, 05877, is a twocomponent, resinrich filler formula, containing milled fibreglass. It offers excellent adhesion to steel, galvanized steel, aluminum, ecoat, sheet molded compound (SMC), fibreglass reinforced polyester (FRP), concrete and wood substrates, and provides additional strength when deeper fill and gap spanning capability is needed.Designed to simplify the mixing and application process, this filler is ideal for waterproof repairs to holes and rust.3M Reinforced Filler, 05877, is intended for use with the 3M Dynamic Mixing Applicator, 05846. View More |