The site you link to is mine. The formula for PC-Glycol that I posted there was given to me by Pat Gainer in an e-mail several years ago. I'm sure the one that got published in Photo Techniques was a refined version, but my PC-Glycol has been working fine. (My first batch lasted 2.5 years with no detectable loss in activity.)Originally Posted by srs5694
I make PC-TEA "in situ" by mixing equal parts PC-Glycol stock and triethanolamine.