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
