Composed of SBR rubber and high quality resins, which cures to form a tough, rubbery seal that expands and contracts with the change of weather without cracking. For sealing around aluminum, galvanized and vinyl gutters and downspouts. Used for sealing seams, joints and cracks in gutter troughs, sheet metal work, air conditioning, heating ducts, ventilators, etc. Withstands moderate expansion-contraction cycles. Air cures into a tough, rubbery seal. Permanently flexible. Will not crack or split even over temperature. Water resistant. Covers approximately 21.4’ of a 1/4” bead and 9.5’ of a 3/8 inch bead. White finish. Size 5 ozs.
