Tite-Seal PLST3100 Self Adhesive Double Sided Butyl Pond Seam Tape, 3" by 100' Long

Pond Liner Butyl Seam Tape is a DOUBLE-SIDED butyl adhesiveYou may also like MMBM Clear Double Sided Non-Woven Tape 1" x 55 Yds, 4 Mil, Removable for Crafts & Window Use, 144 Rolls.