Henkel OSI pro-series adhesives and sealants are designed to meet the demanding requirements of the professional building trades. Contractors and builders know they can depend on Henkel to deliver quality adhesives and sealants for superior results. Henkel OSI pro-series sf-450 VOC heavy duty sub-floor and construction adhesive is a heavy duty, premium grade construction adhesive developed for glued floor systems. This VOC compliant formula offers an improved cold weather formula to provide excellent adhesion and easier extrusion. OSI pro-series SF-450 VOC heavy duty sub-floor and construction adhesive can be used in most interior and exterior construction projects either on the job or the production line. It bonds all wood to wood assemblies, whether they are dry, wet or frozen. Primarily designed for on-site bonding of sub-floor and plywood decking to joists during cold weather, it is suitable for use in a wide variety of building materials. The OSI pro-series SF-450 VOC heavy duty sub-floor and construction adhesives all weather formula helps eliminate roll-up on frozen lumber, eliminates squeaky floors, and permits extended flooring spans.