I know P21 costs a bit more and I still dont why Akra Clean is referred to as Prep Wash. Id opt for it over the P21 for the economy. It does a wonderful job of removing LSPs and polish. I do follow with IPA though.
I call it PrepWash because, well...that's what mine says on the label. That's also what they show on the bottles at the TOL site :nixweiss
So they finally changed the number huh? It was HT-23 for decades (used to be called "Removes All" back in the day, at least I did update to "PrepWash" ).
IMO AkraClean/PrepWash is *NOT* really comparable to P21s TAW. The latter is much more of a...uhm...oh sheesh I'm no chemist..."soapy product" than the AkraClean. TAW sudses a bit and it's something you'd reach for to emulsify grease or wash off mud, or something like that. AkraClean (I'm using that name over and over to burn it in ) is something I'd *only* use to "strip" an otherwise clean panel. Not that it won't *do* other jobs, but IME it's not all that great for them.
Eh, I oughta just be all Floyd Meguiar about it and call the stuff HT-806 :chuckle: