| 摘要 |
An intumescent coating composition, coating process for structural panels, and a method of installing the coated and notched structural panels that decreases the fire safety (FSR) rating effectively to meet applicable fire safety approval standards for commercial structures. The intumescent composition comprises sodium silicate, cenospheres, water, and sodium tetradecyl sulfate, and may further comprise either magnesium hydroxide, zinc borate, and amorphous silica, or mineral fibers. The intumescent composition may be applied to wood products, including lumber and any manufactured wood products such as wood structural panels (plywood, OSB, or composite panels), for protection against high temperatures and long periods of heat exposure. The coated panels are notched about their peripheral edges. During installation, the notched, coated panels are installed side-by-side to the framing so that the panels' notches form widened recessed seams, and the seams are then filled with a fire resistant caulk.
|
