AMES BLUE MAX Liquid Rubber Caulk & Sealant - 10.1 oz Tube
.Fill & seal joints, holes, valleys, cracks, around vents, low spots, flashings & seams up to 5/8 wide Blue max caulk crack repair & sealant is a thick, blue, elastomeric, waterproofing rubber primarily used as a filler & sealer for masonry, cement backer board, icf, wood, metal, and epdm.