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💪 Seal it once, seal it right — waterproofing made effortless!
Nassboards Waterproof Tanking Tape is a premium self-adhesive butyl sealing tape designed for professional-grade waterproofing in bathrooms, showers, wet rooms, and outdoor areas. Measuring 85mm wide and 0.8mm thick, it offers strong adhesion to multiple surfaces including tile backers, pipes, and electrical terminals. Its high resistance to extreme temperatures ensures reliable protection against leaks and moisture indoors and outdoors. Available in lengths up to 20 meters, this tape is lightweight, tear-resistant, and backed by a 30-day warranty, making it an essential tool for both DIY enthusiasts and contractors.








| ASIN | B09SNYD51Y |
| Adhesive Format | Self Adhesive |
| Adhesive Location | On the tape |
| Adhesive Side Count | 1 |
| Best Sellers Rank | 14,019 in DIY & Tools ( See Top 100 in DIY & Tools ) 15 in Butyl Tape |
| Brand | Nassboards |
| Colour | Blue |
| Compatible Material | Ceramic |
| Customer Reviews | 4.5 out of 5 stars 356 Reviews |
| EU Spare Part Availability Duration | 30 Days |
| Foil Thickness | 0.8 Millimetres |
| Included Components | Nassboards Tape |
| Item Dimensions L x W x Thickness | 8.5W x 0.1Th centimetres |
| Item Resistance | Waterproof |
| Item Thickness | 0.8 Millimetres |
| Manufacturer | Nassboards |
| Manufacturer Part Number | NassboardsTape |
| Material | Synthetic Rubber |
| Number of Items | 1 |
| Number of items | 1 |
| Other Special Features of the Product | Strong, Waterproof |
| Recommended Uses For Product | Indoor, Outdoor, Plumbing, Electrical |
| Recommended uses for product | Indoor, Outdoor, Plumbing, Electrical |
| Size Name | 20m |
| Special feature | Strong, Waterproof |
| Surface Recommendation | Pipe, Showers, Tile |
| Unit Count | 1.0 count |
| Water Resistance Level | Waterproof |
T**Z
Great tape and cheaper than the other brands
Used to waterproof tile backer board in a shower. If used with the large panel board washers and screws, this does sit quite proud of the surface, so does take a little bit of thinking when tiling ontop. However was easy to cut and sticks to anything and everything. It is not necessary to get the premade bottom corner pieces, however it would make life easier. It was unclear whether tanking membrane was required to stick the felt edges down, so I went belt and braces and liberally coated the tape with Everbuild Aquaseal Waterproof Tanking Membrane.
O**V
Seems good. Time will tell
I used this to tank my shower cubicle. I used backer boards to line the walls. And used the tape to seal the joins and cover the screws. It is easy to cut as required and sticks well once rolled down. It seems to provide a good watertight seal and I was able to tile over the boards and tape with no problem. Only time will tell if it fave a good seal but I am confident it will.
M**L
Tanking tape
Easy to use does what it’s meant to do. One of the cheapest on the market.
A**A
Look no further - Nassboards Waterproof Tanking Tape. Best of the Best
10 out of 10. Very powerful stick. Very easy to apply and has a firm bond. Definitely recommend. It may be slightly more expensive than other brands, but does the job no question. Nice and wide too so you get good coverage. I ordered 15-meters, arrived 3 x 5-meter rolls. Good delivery. Have used on the bottom of our hot tub
S**N
Very good
Very good tape, easy to apply and bonded very well to the boards.
D**.
Very sticky. GREAT PRODUCT.
Saved me so much time when waterproofing my wetroom. Rather than using tanking slurry and membrane tape, which would have been messy and time consuming, I was able to tape up within 1 hour. I did one line using traditional methods and quickly gave up!! Done and dusted no mess at all. Customer service was great had an issue with one of the tape as the backing paper was too sticky and would not tear off resulting in me wasting alot of tape. I reached out and a new 5m free of charge was posted out on a next day delivery. Best practice, I used OB1 around all the edges of the wetroom. Once dry after 24 hours I used the tanking tape. After tiling I used silicone. Overall ID BE shocked if any water passed through!
A**N
Expected to be a very effective product.
This stuff is REALLY sticky! Applies well to single flat surfaces but two sides of a corner can be tricky if (like me) you’re using it for the first time. I’ve used it as a precaution in case of any unlikely leaks under the siliconed shower board walls - I’m hoping it never has to be put into use as a water barrier!
C**Y
Very Sticky, Easy to Apply, But Not Good For Corners
Bought 20m which was supplied as four 5m rolls. Tape is easy to apply to single plane surfaces such as straight down or across a wall, where it excels, but very difficult to apply in corners such as a wet room. The tape has two strips of backing tape, you can peel one off before the other to push into a corner, however the tape stretches unevenly which then causes wrinkles. With 3 of the rolls the backing tape did not peel off correctly which then required picking at with a knife to lift the edge of the backing tape. The glue is very sticky, so once stuck near impossible to peel off and adjust. I used a roller to press the tape firmly down. Not the best experience, I would probably use tanking liquid and tape for corners if I was to do something similar.
Trustpilot
3 weeks ago
2 months ago