I applied one coat last year, and just did another coat recently. It looks great. I'm reluctant to do multiple coats at the same time, as I don't want it to build up and level off the cladding texture, or be more prone to chipping. I apply with a quality 2" paint brush in sections and buff nearly dry with a good microfiber towel 10-15 minutes later. This destroys both the brush and towel, as in the morning they'll both be hard. Best applied in, and left to fully dry overnight in a cooler garage. I've also used RR on the plastic bits of the factory roof rack and on corner pieces of the Thule 696 rack with equally impressive results.