Huntsmans FOAM-LOK 450 Open-Cell Spray Foam Insulation is a High Yield OC spray applied foam when installed following application guidelines, adheres tenaciously to framing members and substrates. FOAM-LOK 450 is a low density, open celled, flexible, 100% water-blown polyurethane foam insulation. It is capable of being installed in unvented attics without an ignition barrier or coating. FOAM-LOK 450 forms a completely sealed air barrier in wall cavities and can be used to fill stud wall construction in a single application or any critical insulation areas. Its performance is superior to commonly used fiber-glass batt or blown-in insulation. It adheres well to most building materials and will provide a continuous barrier against air infiltration for the life of the building. As a component of a "systems" approach to proper building envelope construction in both residential and Type V commercial construction, FOAM-LOK 450 provides exceptional performance in reducing heat transfer.
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