Reliable Seal on Hard-to-Stick-to Surfaces
We engineered our 3M™ Sealing Tape 8777 as a high-tack, translucent tape with a thin, proprietary film backing and high-tack acrylic adhesive available on a split liner. This is a self-adhered tape designed for sealing difficult-to-stick surfaces, even damp surfaces. Built with a waterproof membrane and proprietary backing, this tape seals around nails and staples to prevent moisture intrusion and establishes an air barrier. This sealing tape is UV-resistant (up to 12 months) and the adhesive will not melt or stain when exposed to heat. The tough, unique backing of this tape resists punctures and tears during application, but is also thin and conformable, conveniently fitting into corners. We gave this high tack tape a split release liner to allow for simple and fast application and accurate positioning of the tape. This product is compatible with many building sealants and has a unique acrylic pressure sensitive adhesive that aggressively adheres at low and high application temperature (0°F/-18°C to 150°F/66°C).
Recommended Applications
3M™ Sealing Tape 8777 can be used for a variety of applications, including:
- Deck joist and header board sealing
- Seal window and door openings against moisture intrusion
Resilient Waterproof Tape Solution
Designed for those hard-to-stick-to surfaces, 3M™ Sealing Tape 8777 offers a resilient and waterproof solution for tough applications. We built this tape to be durable in extreme temps and resistant to the wear and tear of harsh environments. For a strong sealing tape that is also thin and conformable, look no further than 3M™ Sealing Tape 8777 and enjoy the advantages of one of our many innovative tape designs prepared to meet your everyday challenges.

3M 94246, Versaflo Powered Air Purifying Respirator Heavy Duty Assembly TR-813N/94246(AAD), 7100150924, 1 EA/Case
3M 91756, Performance Paint Prep Respirator N95 Particulate, 8110SP20-DC, Size Small, 7100159321, 20 Each/Pack
3M 72368, Organic Vapor/Hydrogen Fluoride/Sulfur Dioxide/High Efficiency Cartridge 453-07-01R06, ALP3, 7000126359, 6 EA/Case
3M 32441, Chemical Odor Valved Respirator, 8577C2-DC-PS, 7100189894, 2 Each/Pack
3M 43060, Aura Particulate Respirator 9205+, N95, 7100232219, 240 ea/Case
3M 17249, Versaflo Economy Headcover, S-103S-20, Small/Medium, 7000127462, 20 EA/Case
3M 91804, Disposable Solvent & Chemical Respirator, OV/P95 52P71C1-DC, 7100160864
3M 91804, Disposable Paint Project Respirator OV/P95, 52P71P1-C-M, Size Medium, 7100160847
3M 17316, Versaflo Respiratory Hard Hat Assembly M-305, with Standard Visor and Faceseal, 7000002382, 1 EA/Case
3M 07145, Inhalation Port TR-654 Replacement Gaskets for TR-653 Cleaning and Storage Kit, 7000002050, 20/Bag, 4 Bags/Case
3M 17085, Versaflo Hood with Integrated Head Suspension, S-433S-5, Small/Medium, 7000127431, 5 EA/Case
3M 46464, Particulate Filter 5N11, N95, 7000002008, 100 EA/Case
3M 54295, Particulate Filter 2096, P100, with Nuisance Level Acid Gas Relief, 7000002048, 100 EA/Case
3M 54357, Particulate Respirator 8246, R95, with Nuisance Level, Acid Gas Relief, 7000002059, 120 EA/Case
3M 30804, Trizact Hookit Foam Disc, 3 in, 8000, 7100193763, 15 discs per carton, 4 cartons per case
3M 60356, Scotch-Brite Roloc Light Grinding and Blending Disc, GB-DR, Heavy Duty A Coarse, TR, 3 in, 7100007318, 100 per case
3M 20274, Neoprene Contact Adhesive 10, Light Yellow, 1 Gallon Can, 7000144610, 4/case 