Alsa Corporation Passive Fire Barrier is a heavy-bodied, single-part latex designed for use on construction materials such as Oriented Strand Board (OSB), Structural Insulated Panels (SIPS), framing lumber, plywood, trusses, drywall, doors, and more. May also be used on aluminum and various kinds of structural steel, including beams, decking, sheets, round and box columns.

 

Method:

When activated by heat or flame, a dense carbon char is formed separating and sheilding the substrate from heat while off gassing displaces oxygen from the treated surface; thus eliminating two of the three components needed for combustion.