Dont know about PB, its a penetrating oil. I did not know it was part of the goat pee ingredients, from what I remember goat pee is 100% methynapthalene or something like that, not a mixture of chemicals like most prep, but I could be wrong. Never really paid much attention to what its made of
Lots of different ingredient combinations on line listed as "goat pee".
We ran across this one: 50/50 Tolulene and PB Blaster = yellow prep that is marketed under the name Goat Pee.
We tryed it some but I wondered if the tolulene was what was destroying the tires.
You know; you see some old used tires that look like a dryed up mud flat.(cracks everywhere)
So we started using the PB only. Don't have a durometer but it seems to work, going by
feel and fingernail duro.(high tech.)
I think we are all lost in this monkey see monkey do kart racing.(me too)
I do try to look away once and a while and actually think for myself.
You'd be suprised what you can figure out without prep.
It's like this: Do you want to be the monkey looking or the monkey being looked at?
LOL. I still love karts and racing but some of these monkeys have forgotten
how fun it is and that it is supposed to be! Take care(wear gloves)....