Urethane Brush-Grade 522 is a high-solids, single-component, moisture-curing polyurethane elastomeric coating. Specifically formulated with a thicker consistency than Urethane 520, Urethane Brush-Grade 522 is a mastic designed to waterproof and protect large gaps and problem areas.

  • Extremely durable
  • Superior adhesive and cohesive strength
  • Excellent elongation and tensile strength
  • Withstands expansion and contraction (thermal cycling) of roof surface
  • Great solution for emergency repairs including recent hail damage

Urethane Brush-Grade 522 was developed from Aromatic Urethane 520 as a waterproofing mastic to use with Urethane 520 and other coatings. With excellent adhesive qualities, Urethane Brush-Grade 522 can be used to restore and protect most conventional commercial and industrial roofing substrates. The Urethane Brush Grade 522 is used for several of American WeatherStar’s restoration systems and also as an excellent solution for repairs.

  • Modified Bitumen
  • Metal
  • Single-ply
  • Smooth BUR
  • SPF
  • Metallic Gray
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  • 5-gallon pail
  • 1-gallon pail
  • 20 oz. sausage tube
Product Data SheetSafety Data Sheet
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