http://www.rvroof.com/

QUOTE: RV FlexArmor™ should not to be confused with products such as polymers or elastomerics that can be purchased and applied over some rv roofs. Just like high end automotive paint is not like house paint, we are not the same as polymers or elastomerics that cure in hours or days. Our specialized, RV exclusive, dual component sprayed polyurea system is dry to the touch in 6 seconds and can be walked on in minutes.