GCP Bituthene Rubberized Asphalt-Based Mastic 5 Gallon
A rubberized asphalt-based mastic. It has excellent adhesion to structural concrete, masonry, glass-mat faced gypsum sheathing and wood and is designed to seal terminations, edges of patches, and overlaps in detail areas. It is an integral part of the Bituthene® Waterproofing System, though it should not be used as a primary waterproofing material. It is compatible with all Perm-A-Barrier® self-adhered air barrier and flashing membranes.
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