I wouldn't be surprised to find that CLR and other products like it (ie lime a way) are basically diluted muratic acid, with coloring and something for the fumes.
I use 10 parts water to 1 part muratic acid to clean the bottom of my fiberglass boat. And a 12 to 1 mix in my fiberglass shower, any more than that and it will turn chrome black.
I'd be cautious with it.
1957 WILLYS pickup,
1973 J 4000,
1978 CJ7 DD.
1979 CJ7 360, TH400/Quadratrac.
1980 CJ5 trail Jeep.
1989 YJ the CJ to YJ.