OSI, 28 ounces sf450 + polyurethane. 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 dry, wet or frozen. primarily designed for on-site bonding of subfloor and plywood decking to joists during cold weather. suitable for subfloor, glued floor systems, tongue-and-groove flooring, standard wood construction, concrete, masonry, and wood-to-wood assemblies. ideal for use in prefab or modular construction. bridges minor framing gaps.