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TUFCHEM™ II Membrane Spray Grade

Urethane Asphalt Membrane

TUFCHEM II Membrane-Spray Grade is a 2-component elastomeric urethane-modified asphalt membrane. It is designed to be applied using industrial spray equipment at a nominal 1/8-inch (3 mm) thickness to protect concrete and steel substrates from corrosion. Also available in trowel-applied Regular Grade and self-leveling TUFCHEM II SL Membrane.

Uses
  • Corrosion barrier to protect concrete and steel substrates from chemical attack.
  • Membrane under acid-resistant brick, polymer concrete, and vessel linings.
  • Dew point corrosion protection membrane under refractories and gunite linings.
  • Corrosion barrier in chimneys, flues, or ducts.
  • Field repair compound for rubber membranes in tanks and absorbers.
Features
  • Spray-applied
  • Sag-resistant at 80 – 165 mils (2.1 – 4.2 mm) WFT
  • Two-component
  • Shelf stable
  • Achieves 80 – 125 mils (2 – 3 mm) film in one pass
  • Very good abrasion resistance
  • Retains flexibility down to -40°F (-40°C)
  • Suitable for acids, alkalis, and salt solutions
  • Excellent water vapor barrier
  • Bridges hairline cracks in concrete



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