And caravans have a much thinner coat of paint than carsBe aware some polishes are abrasive,if you caravan is clean and free from any blemishes then use a good quality wax, I've used Armorall Speed wax(contains carnuaba wax). I've always been satisfied with the results and easy to apply
Same here as Birdman and Dusty dog.Never polished a Caravan in 50 years, but use a good shampoo. Recent years washed with Fenwicks and then Finnish with Fenwicks Bobbydazzler and gives a good shine with far less effort.