One of the best recommendations for color matching privacy glass is to record both the DOT and M numbers from the original glass. The DOT number will identify the glass manufacturer and the M number will indicate the specific glass construction used for the part needed.

Several manufacturing companies, including LOF and Carlite, have developed batch solar control privacy glass. Because of the manufacturing efficiencies of batch versus coated glass, the demand for coated glass is declining. Older varieties of coated glass are now extinct and can not be found.