LS 400 HF is formulated for your fast-track applications. Our new self-leveling underlayment is pourable or pumpable and provides a smooth surface for finished floor coverings. Its high flow distance combined with its self-healing properties reduces jobsite labor and saves time. LS 400 HF is ready for tile in 2-3 hours and moisture sensitive flooring in 15 hours, which allows you to finish jobs faster.
When properly prepared, suitable substrates include:
• Concrete
• Ceramic, porcelain or quarry tile
• Pavers
• Cement or epoxy terrazzo
• Cement backerboard
• Metal
• VCT or full glued down, non-cushioned vinyl sheetgoods
• Exterior grade plywood (with reinforcement lath)
• Oriented Strand Board (OSB) (with reinforcement lath)
• Gypsum substrates (properly primed) with minimum tensile bond strength 72 psi (0.5 MPa)