Sika Water Seal 5L

Sika Water Seal is a deep-penetrating, water-repellent treatment designed to protect masonry from rain, damp, and environmental damage. Supplied in a 5-litre tin, it helps preserve the appearance and durability of exterior surfaces without altering their natural look.

Usage

Sika Water Seal is used to substantially reduce rain and damp penetration on vertical masonry surfaces, helping to protect against discolouration, weathering, and frost-related damage such as spalling. It also aids in preventing efflorescence, keeping surfaces looking cleaner for longer. In industrial or urban environments, sealing masonry with Sika Water Seal helps protect surfaces from attack by acidified atmospheres and reduces staining caused by smoke and pollution.

Advantages

This colourless, long-lasting treatment penetrates deeply into the surface to create an effective water-repellent barrier while still allowing the masonry to breathe. It helps protect treated surfaces from discolouration caused by pollution and significantly reduces the risk of efflorescence. Sika Water Seal is economical and easy to apply, with application possible by brush or spray, making it suitable for both small and large areas.

Packaging & Colour

Sika Water Seal is supplied in a 5 litre tin and comes as a colourless liquid, ensuring the natural appearance of treated surfaces is maintained.

FAQs

What surfaces can Sika Water Seal be applied to?

It is suitable for vertical masonry surfaces such as brickwork, stone, and concrete.

Will Sika Water Seal change the appearance of the surface?

No, it is colourless and does not alter the natural appearance of the treated surface.

Does Sika Water Seal allow the surface to breathe?

Yes, it is breathable, allowing moisture vapour to escape while preventing rain and damp penetration.

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As part of the JJ Roofing Supplies Group, we build on decades of experience supplying construction materials across the UK. We've expanded beyond roofing to offer a growing range of building materials, including timber, insulation, landscaping products, plumbing supplies, flooring, doors, bricks, fencing, garden buildings and much more – all available to order online with nationwide delivery.

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Every order is personally reviewed by our experienced team to ensure everything is correct before dispatch. We offer delivery from as little as the next working day on selected products, so please refer to the dark blue Estimated Delivery box above for the expected delivery timeframe for this item.

We work with trusted manufacturers and specialist delivery partners to ensure your order arrives safely and on time. You'll receive tracking details once your order has been dispatched, and if we need to confirm any delivery details, one of our team will contact you directly to keep everything running smoothly.

Roof Tiles & Fittings:

We recommend ordering an additional 10% of roof tiles to allow for any breakages that may occur during delivery or handling. Roof tiles are naturally fragile, and having a few extra on site helps prevent delays and ensures your roofing project can be completed without interruption.

Multiple Products from the Same Supplier

If you're ordering multiple products from the same supplier, your order will be dispatched together once all items are ready. This means the longest lead time will apply.

If you need part of your order sooner, please call us on 01202 113233. We can arrange a split delivery, although an additional shipping charge will apply.