

💧 Seal the deal on moisture—because your wetroom deserves the best!
Nassboards Waterproof 5KG Tanking Membrane is a premium, solvent-free acrylic liquid membrane designed for professional-grade waterproofing of wetrooms, bathrooms, kitchens, and other moisture-prone areas. Compatible with a wide range of substrates, it forms a flexible, durable barrier behind tiles, dries within 24 hours, and covers up to 8m² per tub, making it the go-to solution for stress-free, long-lasting wet zone protection.








| ASIN | B07WGJDPJM |
| Best Sellers Rank | 12,919 in DIY & Tools ( See Top 100 in DIY & Tools ) 22 in Waterproofers |
| Brand | Nassboards |
| Colour | Waterproof Tanking Wetroom System |
| Compatible Material | Engineered Wood |
| Customer Reviews | 4.4 4.4 out of 5 stars (100) |
| Included Components | Waterproof Tanking Wetroom System |
| Item Dimensions | 25.4 x 50.8 x 12.7 centimetres |
| Item Form | Liquid |
| Item Type Name | Waterproof Tanking Wetroom System |
| Manufacturer | Nassboards |
| Material | Acrylic |
| Model Number | TankingKitSystem |
| Number of Items | 1 |
| Style Name | Compact |
| Surface Recommendation | Fixture, Floor, Shower, Tile, Tub, Wall |
| Unit Count | 5000.0 gram |
| Water Resistance Level | Waterproof |
R**S
Liquid membrane
Very good quality liquid membrane
A**H
Excellent product
Excellent product. Paints on easy,drys well with a water proof coating. Water based so brushes easy to clean.
G**M
It worked
The colour is very bright sky blue, this was hidden once I painted over it with a grey patio masonry paint. This was purchased to make my garage floor and walls water tight as at one end it is below ground level, when it rained the garage floor would have a large puddle. So far this is working a treat and no puddles, fingers crossed I won’t have to raise things off of the floor.
P**7
Excellent does the job
We bought a tanking kit and ran low on the liquid membrane. This is great for getting coverage without having to buy the kit.
S**G
Expensive, but worth the money.
Used this membrane couple of years ago on the downstairs shower before tiling. The shower is only for casual use, but no issues found. The tiles are still attached to it and can't see any signs of mold etc.
J**N
Dried to rubbery material, as expected.
I can only describe my experience which is that it brushed on easily, dried to a rubbery surface and when I needed to do a small cut out I used tools to scrape if off in postage stamp size pieces of rubbery material. As this was my fist use it was for 'belt and braces' but seemed worthwhile and I expect to use it again.
A**I
Brilliant product
Very tough and durable. Much better than other products that I used previously
S**Y
Can be painted on plasterboard
Goes on easily and the colour it is you can see where you’ve already painted.Slight odour to it and suggest wearing a mask.Time will tell if works properly.
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