Well you have a bunch more years on me so not gonna get Smart with you.
But every floor of mine I could usually when allowed to maintain it make it last at least 2 years till I need to restrip
yes i see well i do not go that long i do mine strip downs every year so going that long i dont need over 18% i have used them but not what i like to do. you can look at there other waxs there a good comp. and are not that high in price. http://www.midlab.com they have alot of things for floors i use alot of there stuff.