General Guidlines for Fire-Retardant Treatment and Coating

• Specify FRTW plywood products which have been treated with chemicals exhibiting proven performance over the past 15 years by consulting organizations such as the National Association of Home Builders (NAHB).
  
• Specify FRTW plywood products which have been treated with chemicals exhibiting proven performance over the past 15 years by consulting organizations such as the National Association of Home Builders (NAHB).
  
• For fire-retardant coatings, ensure the surface to be coated is clean and dry. For previously coated surfaces, sand lightly and apply a specially formualted undercoat in advance of the fire-retardant coating application.
  
• For fire-retardant coated surfaces where appearance is important, apply the coating in two light layers while meeting the recommended application rates of the manufacturer. Final colour can be obtained by applying up to two coats of alkyd paint over the clear or white fire-retardant coating. 

References

Wood and Fire Safety, Canadian Wood Council, 1991

Product Guide for Fire-Retardant Wood Applications, Dricon, Koppers Company Limited, 1989

Homebuilders Guide to Fire-Retardant Treated Plywood, NAHB National Research Center, 1990