Why use a wax coated sprinkler? If you're dealing with a corrosive environment, use a sprinkler coated in PTFE. It works in most all corrosive atmospheres.
I did a quick search of Tyco and Reliable's line of standard spray sprinklers. Neither appear to offer QR sprinklers with a wax coating. Their standard response ones do come with wax coated as an option.
Note that both companies have a corrosion-resistant listing for their QR polyester coated sprinklers (e.q white, black).
"""Why use a wax coated sprinkler? If you're dealing with a corrosive environment, use a sprinkler coated in PTFE. It works in most all corrosive atmospheres. """
That is what theydecided to do after learning the wax coated ones are not QR after getting the wax coating.
