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💦 Seal it fast, seal it clear—never let leaks hold you back!
Pro-Kleen Instant Waterproof Sealant Spray is a 400ml aerosol that provides a tough, transparent, and flexible waterproof seal on multiple surfaces including roofs, pipes, and gutters. Designed for instant emergency repairs, it dries quickly to a durable finish that prevents leaks, rust, and corrosion, making it an essential tool for both indoor and outdoor maintenance.






| ASIN | B09W33TGJS |
| Best Sellers Rank | 5,452 in DIY & Tools ( See Top 100 in DIY & Tools ) 111 in Sealers |
| Brand | Pro-Kleen |
| Colour | Clear |
| Compatible Material | Aluminium, Glass, Metal, Plastic, Stainless Steel |
| Customer Reviews | 4.2 out of 5 stars 966 Reviews |
| Included Components | Pro-Kleen Instant Waterproof Sealant Spray |
| Item Dimensions | 20 x 7 x 7 centimetres |
| Item Form | Spray |
| Item Weight | 400 Grams |
| Item dimensions L x W x H | 20 x 7 x 7 centimetres |
| Item weight | 400 Grams |
| Manufacturer | Pro-Kleen |
| Manufacturer Part Number | MYINSWP400 |
| Material | Polyurethane |
| Model Number | PK281522 |
| Number of Items | 1 |
| Style | Single |
| Style Name | Single |
| Surface Recommendation | Roof |
| Unit Count | 400.0 millilitre |
| Water Resistance Level | Waterproof |
| Water resistance level | Waterproof |
M**N
Ex'sealant
This waterproof seal definitely works and so easy too use. Make sure you have a well ventilated area and use a mask/googles as it's a strong product and exceptional value for money as a little goes far. It definitely work for me in my garage.
P**T
Delivery put in a safe place with care
Happy with this product and prompt delivery service thank you
K**O
Effective at fixing leaking water butt
Fixed the leak from my waterbutt. Made sure it was dry and sprayed both the inside and outside where the crack was a couple of times. No leaks since. So good value- much cheaper than a nee water butt.
F**I
Excellent product
Excellent product. It allowed me to get to some hard to reach places which I could not seal with normal sealant guns. I also bought I sparky can extension stick to apply it to places out of reach.
M**E
Anything more than a slight slope you have issues.
If you have any minor slope to the piece you are trying to repair then it will run... so spray down slope not across. It will take time... Yes goggled, gloves and mask are required if indoors and outdoors!!! Plug ANY holes bigger than a few mm wide or a little tap over and spray to cover all tape and wider area. 3 stars simply for the areas required to usage is flat or slight slope..
G**S
Does the job well
Does the job well ⭐️⭐️⭐️⭐️⭐️
P**N
Did not stop leaks
Used on 4 different leaking joints on guttering, it did not work on any of them. Followed instructions supplied, very disappointing.
P**S
It doesn’t work
Buy at your peril.
Trustpilot
1 month ago
4 days ago