Applied by mixing with water and spraying in more than one coat to the beam to the final thicknesses shown below.

When fluted or corrugated steel floor units are used, crest areas shall be filled with Spray-Applied Fire Resistive Materials above the beam.

Beam surfaces must be clean and free of dirt, loose scale and oil. Min average and min ind. density of 15/14 pcf respectively. Min avg and min ind density of 22/19 pcf respectively for Types Z-106, Z-106/G.

Min average and min ind. density of 40/36 pcf respectively for Type Z-146. For method of density determination, see Design Information Section.