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.

• Translucent, 9.9 mil tape, proprietary backing, high tack acrylic adhesive, split liner
• UV-resistant for up to 12 months and the adhesive does not melt or stain when exposed to heat
• Features a waterproof membrane that produces a moisture barrier
• Sealing tape provides an air barrier