No-Burn Plus ThB is an intumescent fire protective coating for spaces where spray polyurethane foam insulation is installed. Used as a component in an alternative thermal barrier, an alternative ignition barrier, and/or an exterior fire rated wall assembly, No-Burn Plus ThB passively protects spray foam insulation. No-Burn Plus ThB, available in white and gray with the field option to tint to charcoal, is tested and approved to coat the leading brands of spray polyurethane foam insulation.
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