3M™ Sealing Tape 8777 is a self-adhesive barrier for use in the construction industry to seal window and door openings against moisture intrusion. Tape has a unique, aggressive acrylic adhesive and thin, proprietary backing.
3M™ Sealing Tape provides a weather-resistant barrier around windows and doors. Tape will adhere when applied in extreme temperatures beyond the range of traditional asphaltic or butyl flashing tapes: as low as 0ºF or as high as 120.
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