StoneCare4U Sandstone Sealer - Green

Ensure a specialised sealer for outdoor natural sandstone surfaces with the StoneCare4U Essential ...

Best current price£124.00from Homebase

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HomebaseStonecare4u Essential Matt Finish Sandstone Sealer 5L 3 Pack
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wilkoStoneCare4U Essential Matt Finish Sandstone Sealer - 5L - Pack of 3
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B&Q - Stonecare4USandstone Sealer Matt (Dry) Finish (15L)Highly Effective Sealer For Sandstone
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£124.95
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Product Information

Full details

This StoneCare4U Essential Matt Finish Sandstone Sealer in Green is designed for owners of outdoor natural sandstone, limestone, and slate surfaces. Its key benefit is providing a durable, matte finish that offers exceptional stain and water resistance while preventing efflorescence and inhibiting algae growth. A caveat is that it may alter the color of some surfaces, requiring a test in an inconspicuous area before full application.

All features

ColourGreen
BrandStoneCare4U

Extended Product Information

FAQs

Can I use this sealer on other types of stone?

This sealer is specifically formulated for natural sandstone, limestone, and slate. Always test on an inconspicuous area before applying to any other stone type.

How long does the protection last?

The protection is long-lasting, but the exact duration depends on environmental exposure and maintenance. Regular cleaning with pH-neutral agents will help maintain its effectiveness.

What happens if it rains shortly after application?

If rain is forecast or starts within 6 hours of application, stop immediately and cover the treated areas. Rain can wash away the sealer before it has cured, compromising its effectiveness.

Will this sealer make my stone shiny?

No, the sealer provides an "essential matt finish" that enhances the natural look of the stone without adding any shine.

How often should I reapply the sealer?

Reapplication frequency varies based on wear and exposure. Typically, it is recommended every 2-5 years, but monitor the surface for signs of reduced water repellency.

Can I dilute the sealer with water?

No, the product should not be diluted. It must be applied at its full strength to ensure proper adhesion and performance.

What safety precautions should I take during application?

Always wear appropriate safety gear, including gloves, suitable protective eyewear, a face mask, and clothing, to avoid skin and eye contact and inhalation.

Troubleshooting

Uneven finish or patchy coverage

Ensure the sealer was applied evenly and to saturation. Reapply a second coat "wet on wet" if necessary, ensuring consistent application.

Sealer not drying or remaining tacky

Check if the application temperature was within the recommended range (13-23°C) and if the surface was completely dry before application. Excessive moisture or low temperatures can impede drying.

White powdery residue (efflorescence) still appearing

Ensure the surface was completely dry and free of existing salts before sealing. The sealer helps inhibit but may not fully prevent efflorescence if there's a persistent moisture source.

Water beading is not effective

A second "wet on wet" coat may be required for full saturation. The porosity of the stone greatly affects absorption; re-evaluation of application technique might be needed.

Pros and Cons

Pros

  • Provides excellent protection against stains and water ingress.
  • Creates a natural, matte finish that doesn't alter the stone's appearance drastically.
  • Helps prevent common issues like efflorescence and algae growth.
  • Environmentally friendly formula.
  • Allows stone to breathe, reducing moisture-related risks.
  • Reduces long-term maintenance needs.

Cons

  • May cause a slight color change on some surfaces; testing is required.
  • Requires specific application conditions (temperature, surface dryness).
  • Cannot be diluted; must be applied as is.
  • Requires protection from rain for the first 6 hours post-application.
  • Application requires safety precautions (gloves, eyewear, mask).

Setup, Compatibility & Care

Preparation:

  1. Ensure the work surface is completely clean and free from loose debris.
  2. Verify that the weather is clear and dry for at least 72 hours before application to guarantee the surface is completely dry.
  3. The ideal application temperature range is between 13 to 23 degrees Celsius.
  4. Protect surfaces not intended for sealing using masking materials.

Application:

  1. Wear appropriate safety gear, including gloves, protective eyewear, a face mask, and clothing.
  2. Apply the sealer using a low-pressure sprayer, roller, natural fibre brush, or sponge.
  3. Apply the sealer to saturation, ensuring two coats are applied "wet on wet" for complete coverage. Do not dilute the product.
  4. Allow the surface to dry; it should be dry to the touch within 45 to 60 minutes.
  5. In case of rain forecast or showers, stop application immediately and cover treated areas. The surface must remain completely dry for the first 6 hours after the final coat.
  6. Always test the product on an inconspicuous area first to check for any color changes.

Compatibility:

Suitable for natural sandstone, limestone, and slate surfaces. Not recommended for treated or non-porous materials. Always test on a small, hidden area.

Care:

Clean sealed areas using a mild, pH-neutral cleaner or a highly diluted outdoor cleaner. Avoid harsh or abrasive cleaning agents, as these can damage the treated surface.

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