If you are wondering how good SGlow is...he offers lifetime warranty last time, when he just started..that how it is.... still remember i called him 3 years ago...and he is honest, and trustworthy guy, he told me over the phone- no need to maintain, just wash consistently -no need to buy anything extra from him, no need special care..no need..no need...and emphasized preferably you clay from time to time...thats all..i recommended a fren - after 3 years - he said no complain - still there!! probably not as 'thick' when just done, but still good enough - recommended countless of frens over the years, but myself never did it...reason: my paint quality too bad - he wont accept my car!! shit....