Masonry Sealers

Masonry sealers protect concrete, brick, block, mortar, pavers, and natural stone from water intrusion, stains, salts, and UV damage. The right sealer reduces cracking, spalling, efflorescence, mold growth, and freeze–thaw damage while enhancing appearance and simplifying cleanup.

Choose between penetrating and film-forming technologies. Penetrating silane/siloxane products soak into porous substrates, repel water, remain breathable, and preserve a natural look—ideal for exterior walls, driveways, and retaining structures. Film-forming acrylic, epoxy, and polyurethane sealers create a protective coating that can deliver a matte to high-gloss “wet look,” boost color, resist stains, and stabilize joint sand on pavers.

Key considerations:
- Substrate: concrete slab, brick veneer, CMU block, clay pavers, limestone, slate, or stucco.
- Exposure: de-icing salts, coastal spray, heavy traffic, oil or food spills, graffiti risk.
- Finish and safety: natural, satin, or gloss; slip-resistance additives for wet areas.
- Chemistry and compliance: water-based vs solvent-based, VOC limits, UV stability, breathability.
- Maintenance: expected lifespan and recoat interval (often 2–5 years).

Application is straightforward with a pump sprayer, roller, or brush. Prep drives results: degrease, remove previous coatings if needed, pressure-wash, and allow the substrate to dry fully. Most products cover 100–250 sq ft per gallon per coat; apply thin, even coats and test a small, inconspicuous area first. Typical dry time is 1–4 hours to touch and up to 72 hours for full cure. For new concrete, wait 28 days unless using a cure-and-seal.

Use masonry sealers on patios, walkways, garage floors, chimneys, basement walls, and decorative stone to extend service life and curb costly repairs. Look for features like chloride and graffiti resistance, efflorescence control, and “wet look” enhancement to match performance to your project.

This directory highlights concrete sealer, brick sealer, stone sealer, and paver sealer options, plus product specs, coverage rates, and application tips to streamline selection.