Brush Grade Mastic:

Brush Grade Mastic

An SBS Modified, Asphalt-Based, Brushable Mastic for Faster Flashing Installation and Roof Repairs

Brush Grade Mastic is used to adhere bituminous flashing plies and SBS modified bitumen flashing membranes to vertical surfaces.  Its brushable consistency will help speed the application in comparison to trowel-applied mastics.

This product is good for emergency repairs over damp surfaces and provides additional strength to flashings, edgings, splits, and blisters when it is used with reinforcing mesh such as BURmesh or a reinforcing fabric.


The asbestos-free Brush Grade Mastic consists of a fibrated, asphalt- based mastic formulated with a blend of SBS rubber modifier, penetrating oils, and plasticizing agents.

Roofing & Weatherproofing Peace of Mind

We deliver peace of mind to building owners and facility managers by managing roofing and building life cycles for customers in all industries, including education, healthcare, government, manufacturing and more.

  • Tremco Roofing offers the industry's most comprehensive roofing and weatherproofing solutions for restoration, repair, maintenance, replacement and new construction.
  • WTI (Weatherproofing Technologies, Inc., a subsidiary of Tremco Incorporated), provides roofing services, construction management and general contracting.
  • Our Canam Building Envelope Specialists affiliate provides building envelope solutions to eliminate air leaks, improve energy efficiency and reduce costs.


US: 1.800.852.6013

Canada: 1.800.668.9879