As Chris says above - we found a hydraulic hose but not at any RV type store - had to drive 120 miles to Guadalajara to a hose specialty store to get the correct hose and fittings - not all RV parts are RV specific so you may find what you need elsewhere - as state above there are roof coatings of various types that can be found - sometimes you have to be creative and thing out of the box - most important thing about any roof coating is that the surface and coating be compatible and that the coating is going to stick permanently and not start peeling off due to exposure to elements such as Sun and salt air.