I looked up S5 Bob and in the chemical ID it said TRADE SECRET. That intrigues me, but there you are. Jim -----Original Message----- To get the chemical makeup without the manufacturer printing it on its labels, lookup the MDS (Material Data Safety) PDF. Regards, Robert Bethman N0DGN On 6/29/2019 6:25 PM, Sarge USA RET wrote: > > to w5jo at brightok.net