Siramico Coatings Natural Stone Sealer 5L - Water-Based Breathable Impregnator For Sandstone, Limestone, Granite, Slate & Concrete

Name: Siramico Coatings Natural Stone Sealer 5L - Water-Based Breathable Impregnator For Sandstone, Limestone, Granite, Slate & Concrete
Brand: Siramico Coatings
SKU: gxkrcywkwh
Availability: InStock

Siramico Coatings Natural Stone Sealer offers professional-grade protection for natural stone surf...

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B&Q - Natural Stone Sealer 5LWater-Based Breathable Impregnator For SandstoneLimestoneGraniteSlate & Concrete. Covers 50M²

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Product Information

Full details

The Siramico Coatings Natural Stone Sealer is designed for homeowners and professionals seeking robust, invisible protection for porous natural stone surfaces. Its key benefit is providing advanced water and oil repellency while maintaining the stone's natural look and breathability, making it ideal for heritage properties. A potential caveat is the need for proper surface preparation to ensure optimal adhesion and longevity.

All features

Model Part Number	SIRAM-WWPS-01
Brand	Siramico Coatings

Extended Product Information

FAQs

Can this sealer be used on granite countertops?

Yes, if the granite is porous and has not been previously sealed with a film-forming product. Always test in an inconspicuous area first to ensure compatibility and desired results.

How long does the protection last?

With proper application and care, the Siramico Coatings Natural Stone Sealer can provide effective protection for up to 10 years.

Can I apply this over an existing sealer?

No, this sealer works best on bare, untreated stone. Existing sealers, especially film-forming ones, must be completely removed before application.

Is it safe to use indoors?

Yes, the formula is solvent-free and low VOC, making it safe for indoor use when applied in a well-ventilated area.

What is the difference between this and a surface sealer?

This is an impregnating sealer that penetrates the stone, providing protection from within without forming a surface film. Surface sealers create a visible coating on top of the stone.

How should I clean a sealed patio?

Clean sealed patios with water and a mild, pH-neutral detergent. Avoid abrasive cleaners or strong chemicals that could damage the sealer's integrity.

Can I paint or varnish over the sealed surface later?

Generally, it is not recommended to paint or varnish over an impregnating sealer as it can affect adhesion. If necessary, surface preparation to remove the sealer would be required.

Troubleshooting

Uneven finish or blotchiness

This can occur if the product was applied too thinly, unevenly, or if the surface was not properly prepared. Ensure the surface is clean, dry, and apply in an even coat. For very porous surfaces, a second coat after the first is touch dry can help even out absorption.

Sealer not repelling water after application

Verify that the surface was fully dry before application and that sufficient time has passed for the sealer to cure (4-6 hours for full waterproofing). Ensure two coats were applied if necessary for the stone type.

Surface appears darker after sealing

This sealer is designed to be invisible. If a darkening effect is noticed, it might be due to the stone’s natural properties or a very thin film forming (which is not typical). Test on a small area first. Ensure no residual product remains on the surface after application.

Mild odor during application

While low-odor, some scent may be present, especially in enclosed spaces. Ensure good ventilation during application and drying. The odor should dissipate quickly as it dries.

Pros and Cons

Pros

Maintains natural stone appearance and texture.
Suitable for historic and older properties.
Effective water and oil stain repellency.
Breathable formula prevents moisture buildup.
Easy to apply with low odor.
Long-lasting protection up to 10 years with proper application.

Cons

Requires clean and dry surface for optimal performance.
Two coats are recommended for full protection.
Not a surface film coating, so it won't change the color or sheen.
Drying times can be affected by ambient temperature and humidity.

Setup, Compatibility & Care Instructions

Compatibility: This sealer is suitable for porous natural stones including sandstone (e.g., Kandla Grey, Indian sandstone), slate, limestone, travertine, granite, and concrete. It is also safe for use on grout.

Preparation: Ensure the surface is clean, dry, and free from any existing sealers, paints, or contaminants. For best results, allow new stone to cure for at least 72 hours. Test on an inconspicuous area first.

Application:

Apply using a low-pressure sprayer, roller, or brush.
For porous surfaces, apply a generous, even coat.
Allow the first coat to become touch dry (30-60 minutes).
Apply a second coat if recommended for the specific stone type or level of protection required.
Allow the surface to cure fully. It becomes touch dry quickly but is fully waterproof within 4-6 hours.

Care: Clean sealed surfaces with mild soap and water. Avoid harsh chemical cleaners which may degrade the sealer over time. Reapplication may be needed every few years depending on wear and tear and environmental exposure.