581 STD GRAY 50 LB BAG MASTERSEAL
1_0992255 MFG #: 56410909
$0.00 / BAG
MASTERSEAL 581, formerly known as THOROSEAL, is a portland-cement-based waterproof coating for exterior below-grade concrete and masonry. It can also be used as a waterproof base coat on above-grade walls before they are overcoated with Thorocoat or Thorosheen. Color Packs use either gray or white base.