I have an older 4 season tent where the heavy duty fly and floor coating has gone "sticky" to the touch. Its a North Face Mountain 25, maybe 15 years old. It has had fairly light use but has saved my bacon on exposed shorelines in wild weather with its robust materials and tight rock solid pitch. Is there anything I can do to get rid of the stickiness? I recall years ago recoating a tent fly and after drying the instructions said to dust with "something" (talcum powder maybe? I can't recall). Thanks edit: well an internet search has revealed the stickiness is probably the beginning of the end as the PU coating breaks down. Although the coating still seems well adhered, the small urethane window has completely disintegrated so I've sewn over a piece of coated nylon.