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Everbuild 402 Water Seal is a premium, solvent-free, water-based sealant designed to protect brick, concrete, stone, and plaster surfaces from water damage. Its breathable formula forms a durable, water-repellent coating that prevents moisture penetration while allowing surfaces to breathe. Packaged in a convenient 5-litre size, it’s perfect for both DIY enthusiasts and professionals seeking long-lasting protection with easy application.

























| ASIN | B0012LETNK |
| Best Sellers Rank | 2,773 in DIY & Tools ( See Top 100 in DIY & Tools ) 67 in Sealers |
| Brand | Sika |
| Colour | Clear |
| Compatible Material | Brick, stone, plaster, concrete |
| Customer Reviews | 4.4 4.4 out of 5 stars (5,460) |
| Global Trade Identification Number | 05029347004255 |
| Item Dimensions | 18 x 20 x 24 centimetres |
| Item Form | Liquid |
| Item Weight | 5 kg |
| Manufacturer | Sika Everbuild |
| Manufacturer Contact Information | Sika Everbuild 41 Knowsthorpe Way, Leeds LS9 0SW |
| Manufacturer Part Number | XWAT5LAB |
| Material | Silicone |
| Model Number | XWAT5LAB |
| Number of Items | 1 |
| Style Name | Single |
| Surface Recommendation | Wall, floor, roof |
| UPC | 764210982531 |
| Unit Count | 5000.0 millilitre |
| Water Resistance Level | Water Repellent |
T**A
Good product.
Arrived on time, good product, have not been able to use yet due to weather. Have used before so sure it will be good. Good price aswell.
D**B
Sealed my concrete steps
I wanted to buy a sealant for my concrete steps as rain was seeping through them into a void under my house. I found it easy to apply with a brush and so far it seems to be working well. Instead of sinking into the concrete, the rain forms puddles on the surface. There was enough in the pack to apply a second coat which I will be doing shortly. I am having a resin coating applied to the steps in a few weeks but the resin is porous so hopefully the sealant will still work underneath it.
J**I
Good Value - Performance Criteria Met
Used previously on single brick built garage - water ingress/seepage abated!!! Great!!!
K**R
Good value & easy to use
Did the job, easy to use
K**E
Excellent condition excellent quality
Excellent quality
M**D
Decent, but needs multiple layers to work well
I bought this product recently and it’s okay overall. The quality is fine, but I found that you really need to use multiple layers to make it truly effective. On its own, a single layer isn’t quite enough for the level of coverage or protection I was expecting. It does the job eventually, but not as easily or efficiently as I had hoped. Not a bad purchase.
C**Y
Not bad
Value for money. When dried slabs looked far better has rained heavy since used so can not say if it lasts
S**D
Effect on driving rain with Everbuild 402 water seal
This product works a treat. I part treated our south east facing wall and the photo shows the effect of Storm Claudia. The rain simply bounces off the treated part on the left! I must paint the rest next Summer.... I would recommend safety glasses when applying the product. Splashes in the eyes will make them sore for days.
S**A
Mi ero stupito come ben 5 litri potessero costare così poco e l'ho preso con qualche dubbio. Mi serviva un impermeabilizzante per la testata in mattoni di un muro che ho a casa in campagna, l'inverno non è raro che geli e la paura era che l'umidità o la pioggia assorbita potesse farli spaccare. Il prodotto si presenta molto liquido e bianco, non ha cattivo odore ma solo leggero odore come di latte e ho usato una pennellessa per stenderlo. Ebbene con poco più di metà tanica (circa 3 litri..) ho finito di coprire con due mani i circa 8 mq di testata, ma la meraviglia è stata che una volta asciutto (in poco più di due ore) risulta totalmente invisibile!! non un alone, non una pellicola, non un cambio di colore.. nulla! tant'è che ho fatto una prova con un secchio d'acqua per verificare di averlo dato correttamente e sì, l'acqua rimaneva tutta in superficie non penetrando di una goccia nei mattoni. Soddisfattissimo!! Rimane solo vedere la sua tenuta nel tempo, ma credo ne potremo parlare tra uno o due anni.
A**Y
works very well. Now the tiles are water proof even after 6 months
T**E
Es como agua, transparente, teniendo cuidado no manchas nada, muy fácil de aplicar y muy muy efectivo. yo lo aplique a las piedras de la fachada, que me entraba humedad, lo hice con una botella de fumigar mis plantas. Rápido ... y genial... al ratito probé a echar agua y la repele como si fuese de plástico la pared. También le he echado a las piezas de madera de la terraza, e igualmente repele el agua.
D**H
I haven’t tried the product yet but the bottle was half open and the box it came in was wet. Some of it spilled apparently…
A**.
Ho comprato questo prodotto per porre rimedio a delle piccole infiltrazioni d’acqua presenti sul mio balcone..l’effetto idrorepellente è molto buono l’acqua rimane in superficie e non assorbe nelle fughe del pavimento stesso. Adesso veniamo al lato un tantino negativo. La durata non è molto lunga a distanza di settimane non da lo stesso effetto iniziale, quindi va passato periodicamente, poi dentro casa si ha la sensazione di camminare sopra un pavimento dove si è appena passata la cera una volta rientrati dal balcone... in compenso però il rapporto qualità prezzo è ottimo, l’intero prodotto può essere utilizzato per rendere idrorepellente il pavimento scelto per circa 6 mesi/ 1 anno ...
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