Quick Roof Extreme is guaranteed not to crack, harden or shrink. It instantly stops leaks and permanently repairs all RV roof materials, vents, skylights, slideouts, windows, awnings, holding tanks, tents and more. Can be applied to most materials when damp or even wet. Permanently repairs EPDM, TPO, metal, fiberglass, aged and rigid PVC, vinyl, wood, OSB and most building materials. 6"W x 25'L

 PROP 65 WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.P65Warnings.ca.gov