Sealers - Stone Sills/ Pier Caps

Sealing Stone Sills and Pier Caps – Benefits, How to Apply & Choosing the Right Sealer

Stone sills and pier caps add style and definition to buildings, walls, and entrances. They face constant weather exposure. Whether made from natural or cast stone, these features absorb moisture, stain, grow algae, and slowly wear down without protection.

Applying a good stone sealer protects them, brings out natural colours, and makes cleaning easier in the future.

Why Seal Stone Sills and Pier Caps?

Sealing helps natural and cast stone by:

✔ Repelling water, oil, and dirt to prevent stubborn stains.
✔ Stopping moss, algae, and lichen growth in damp or shaded areas.
✔ Enhancing stone colour and depth, highlighting subtle tones.
✔ Guarding against weather damage like freeze-thaw cycles.
✔ Reducing surface wear and white salt deposits, keeping a clean look.

Without sealing, sills and caps can fade, stain, and break down faster in wet or exposed locations.

Is Sealing Stone Sills and Caps Easy?

Yes. Sealing works well for both DIY and professional users. Follow these simple steps:

• Clean the stone fully and let it dry before applying sealer.
• Apply sealer evenly with a brush or sprayer, especially on shaped or vertical parts.
• Let the sealer dry completely before any rain or contact.

Cleaning and even application give the best protection and a smooth finish.

Choosing the Right Sealer for Stone Sills and Pier Caps

We offer solvent-based and water-based sealers. Each works well depending on stone type, exposure, and finish wanted.

Solvent-Based Sealers:
Penetrate deep to protect long-term. Great for exposed stone and rich colour enhancement.

Water-Based Sealers:
Eco-friendly and low-odour. May need extra coats on very absorbent or rough stone.

Available Sealer Finishes

🔹 Invisible Finish – Keeps the stone’s natural look with full protection.
🔹 Matt Finish – Soft, low shine; less durable than satin or gloss on solvent sealers.
🔹 Satin Finish – Adds a gentle sheen with strong protection, enhancing natural colours.
🔹 Gloss Finish – Creates a shiny, wet-look that brightens colours and lasts longest.

Note: Matt finishes usually contain less resin and wear faster than satin or gloss. Water-based sealers may require more coats on rough or weathered surfaces.

Why Use a Professional-Grade Sealer?

Professional sealers made for natural and cast stone offer:

✅ Strong protection without changing colour or damaging the surface.
✅ Long-lasting results, especially on vertical or exposed stone.
✅ Easy, even application for a neat, professional finish.

Sealing your stone sills and caps helps prevent stains, weather damage, and wear. The right sealer keeps their beauty and strength for years.

With the proper sealer and application, your stone sills and pier caps will stay clean, bright, and protected—boosting your property’s look and value.