204 Wet/Dry Roof Cement

204 Wet/Dry Roof Cement

Why MATRIX™ 204 Wet/Dry Roof Cement?

A general purpose, asbestos-free formulation for wet-weather repair of roof leaks, this product has unique water displacing characteristics, which ensure superior bonding to both wet and dry substrates and surfaces. The heavy, “trowel-grade” consistency makes this product ideal for flashing details and a variety of roofing and waterproofing repairs such as moving joints and roof penetrations where its flexibility and elasticity make it superior to standard plastic cements. It contains a special additive that actually displaces water from wet surfaces to create a tight seal and its easy application makes it excellent for low-temperature flexibility.  


MATRIX™ 204 Wet/Dry Roof Cement features a heavy, “trowel-grade” consistency and a special additive that displaces moisture to create a tight seal (even in standing water) for:

  • Sealing leaks and openings around flashings, chimneys, vents, skylights, joints in metal edging, gutters, and similar objects
  • Sealing shingles, repairing asphalt build-up, metal, and masonry roofs

Product Properties

Available Sizes

Note:  Product sizes, dimensions, and widths are nominal values and are subject to normal manufacturing/packaging tolerance and variation.
  • Container Sizes
    5-gallon (18.9 liter)
  • Net Contents
    4.75-gallon (17.98 liter)
  • Container Sizes
    3-gallon (11.36 liter)
  • Net Contents
    2.8-gallon (10.59 liter)
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