I prepped and sprayed upol raptor tintable over the entire length of the roof (40')
It took about 4 gallons (that's 4 kits)
I am very happy with the results. I didn't bother tinting it, so it was translucent. After it gassed off for about 2 weeks I then applied Henrys solarflex to the roof. The upol offers an aggressive texture for the solar reflective elastomeric paint.
I am able to pressure wash the roof and it has enough texture to not slip off and die. It has held up very well for two years now.
Originally Posted by BusNomad
UPOL Raptor has a liner product that can be tinted with automotive tints. And if sprayed (after thinning) using a HVLP spray gun, multiple thinner coats can be applied to give a smoother texture. I've seen many videos on YouTube showing this.
I have considered applying this to the bottom 12"-18" all the way around my (future) bus and then painting the rest with auto paint.
Also you might want to look at MotoCoat. Wagner makes it. I watched a YouTube video by Ammo NYC where primer and under body coating were sprayed. Looked good.