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Water Leak Sealing Tape
Water Leak Sealing Tape
Water Leak Sealing Tape
Water Leak Sealing Tape
Water Leak Sealing Tape
Water Leak Sealing Tape
Water Leak Sealing Tape
Water Leak Sealing Tape
Water Leak Sealing Tape
Water Leak Sealing Tape

Water Leak Sealing Tape

10 reviews
Regular price $29.98 Sale price $22.98
Unit price  per 

Water Leak Sealing Tape is an extremely durable waterproof tape that seals out water, air, and moisture to create a super-strong bond that can repair virtually everything. The tape works underwater. It's a super-hydrophobic rubberized adhesive tape. Made from a rubberized material that is thick enough to be reliable but flexible enough to fit any curve or crease.

While we love the character and charm of our older houses, sometimes age and general wear & tear catches up with the best of us. Water Leak Sealing Tape is the perfect solution to outdoor and indoor sealing needs – from leaky roofs & gutters to weatherworn sheds, garages, barns & outbuildings.


  • Super-strong, rubberized, waterproof tape that can patch, bond, seal, and repair virtually everything!
  • Specially formulated with a thick, flexible, rubberized backing that conforms to any shape or object!
  • It can be applied hot or cold, wet or dry, even underwater!
  • Instantly seals out water, air, and moisture to create a super-strong, flexible, watertight barrier!
  • UV resistant, VOC-free, and has a wide temperature range so it can be used in extreme weather conditions! 


  • Color: Black
  • Material: Rubber
  • Width: 10cm/4.0"
  • Length: 150cm/60"
  • Thickness: 0.5mm/20mil
  • Insulation: 800 Volts
  • Temp Range: -60 C to 260 C
  • Pressure: Up to 5 bar


  • 1 roll Water Leak Sealing Tape
Customer Reviews
5 Based on 10 Reviews
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Filter Reviews:
Debbie Y.
My gosh it works

It started leaking around the seam of the window - pretty good gash - around an inch long. I couldn't patch from the outside because of where it was in the window. I thought I'd have to drain it to where it was leaking to fix. My friend told me about this stuff and that it was waterproof and I could from the inside of the pool. I was a hard skeptic of this!!! Happy with the product.

Monic M.
Leaking Sunroof - Fixed!

Wow! This stuff sticks! As a first time user, it was a massive education. The previous owner of my car had sealed the sunroof shut. But the seal was old enough, it was leaking again anyway. And since it was sealed shut, I couldn't get to the drain holes to clean them out. Nobody professional would touch it with a 10 foot pole, so I was left with the most drastic of measures. To seal it this way. Even though I measured everything 3 to 4 times, it still came out with a few surprises when trying to put it on. But even cutting some of it on the fly, and also a tiny bit of overlapping when I specifically didn't want to do that, much to everyone's surprise it looks shockingly good.

Rae L.
This really works

This really works. I used it inside of my brick mailbox that had a few holes rusted in and was getting my mail wet. It does the trick, but bring your patience and an extra set of hands because I've never encountered tape this sticky lol.

John V.
Works as advertised, maybe even better!

I bought as a quick fix for leaking gutter. Winter weather and didn't have time or the inclination to take the guttering down for repair right at the time. Instructions say this tape won't repair a seam, but for me it worked perfectly. I did plenty of cleaning and prep work. I used a heat gun to warm the section of gutter so the adhesion would be good. Made the repair and it has done great for two months. This with a record setting year for rain and 2 extreme cold spells so far. I'm impressed!

Brandon G.
Very sticky, thick adhesive bonds well

We have had some snow and rain recently and the patches on the roof have held until I can get a more professional repair.