Has Lubrizol examined antimicrobial coated pipe samples that did not show any signs of ESC?
Yes, we have recovered samples of pipe from the affected job sites that were literally covered with ABF antimicrobial coating produced by Allied; yet, they showed no signs of cracking. This, combined with the large number of successful installations that include both antimicrobial coated steel pipe and CPVC piping, is what has led us to question the claims of chemical incompatibility. Is it true that amines have been linked to the chemical compatibility issue? The term “amines” encompasses a broad class of chemicals, some of which have no effect on CPVC, some of which may cause environmental stress cracking to greater or lesser degrees, and some of which may cause dehydrochlorination of CPVC. All of these potential effects depend on the type of amines present, their concentration, and potential external stresses on the piping. The mere presence of amines, while possibly of interest, is not a certain cause of a problem. Chemical resistance recommendations published in brochures intended
Yes, we have recovered samples of pipe from the affected job sites that were literally covered with ABF antimicrobial coating produced by Allied; yet, they showed no signs of cracking. This, combined with the large number of successful installations that include both antimicrobial coated steel pipe and CPVC piping, is what has led us to question the claims of chemical incompatibility. Is it true that amines have been linked to the chemical compatibility issue? The term “amines” encompasses a broad class of chemicals, some of which have no effect on CPVC, some of which may cause environmental stress cracking to greater or lesser degrees, and some of which may cause dehydrochlorination of CPVC. All of these potential effects depend on the type of amines present, their concentration, and potential external stresses on the piping. The mere presence of amines, while possibly of interest, is not a certain cause of a problem. Chemical resistance recommendations published in brochures intended
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