All ActivityMost RecentMost LikesSolutionsRe: First Time Buyer...Updated 03/06/2006Great Post. I have a couple more questions. We are in the process of getting our first new MH. The dealer wants to know if we want undercoating put on and and if we want a sealant put on the outside which is supposed to last 5 years without waxing. Are these any good; are they needed; are they worth the money?