Haven't used it but the web site says...
"The avg. life is 3-6 months. The life of the coating depends on how much abuse it take from physical wear from car washes, hand washes, harsh chemicals, detergents, abusive weather or environmental conditions etc. Inside the home it can last over a year".So I'd say on a MH figure about 3-6 months between applications. :B
There are 24 hours in every day - it all depends on how you choose to use them.
Bruce & Jill Brown
2008 Kountry Star Pusher 3910