Bostik’s Ultra-Set® SingleStep™ is a one-part, trowel applied, tacking, moisture-cure urethane adhesive, moisture vapor and sound reduction membrane. This scientifically formulated adhesive and membrane is very tenacious, has extremely low moisture permeability, and is formulated with Bostik’s patent pending Thickness-Control™ Spacer Technology to ensure proper membrane thickness between hardwood flooring and the substrate. Bostik’s Ultra-Set SingleStep does NOT contain any water, and has zero VOC's as per SCAQMD 1168.Information provided by Bostik |