I use a microcloth and a spray bottle and just hand wipe it on. You don't need much, spray onto the microcloth and wipe on, it takes at least 3 coats, I generally use 4 or even 5 in some sections, Just wait 10 minutes between coats. Remember, it is a coating, any dirt you don't clean off will be coated over. For me it took 35 hours to clean my motorhome and 4 hours to wax, the first time. I have used it for 4 years now. I apply a new coat every year. I have stripped my rear cap once using the ZEP stripper, due to peeling, then reapplied. Still looks like new. Never had yellowing, only peeling. Never put it on my roof, only my sides. I don't consider it a last ditch effort, instead I look at it as a once a year wax that is easy to apply. Bugs and dirt come off easy and even easier when it is freshly applied. So I will put a new coat on the front cap before a long trip in the summer. I have found out, that dawn dishwashing soap will work to clean the RV but tends to take off a small amount of the finish. I now only use turtle wax car wash soap.
06 Hurricane 34FT WH W20 Chassis 8.1L 129K, Steersafe, Koni Shocks, DIY Trac Bar, Tri-Metric 2025RV Battery Monitor, 4-6V Batteries, Scan Gauge 2, Crossfires, 735W Solar Morningstar MPPT-60, KVH R5 In-Motion Sat, XM Radio, 07 Chevy Malibu Maxx Toad, Falcon 2, Brake Buddy, Escapee