Concrete & Mortar - Polished/Honed Stone

Removing Cementitious Stains from External Polished/Honed Stone Surfaces

Polished and honed stone surfaces look elegant and refined, making them popular for outdoor patios and paths. These surfaces last long but need careful upkeep, especially during construction. Cementitious stains form when mortar, grout, or cement hardens and sticks to the stone. These stains look bad and can be hard to remove without proper products. Harsh or acidic cleaners can cause lasting damage, so use gentle, stone-safe methods.

How Do Cementitious Stains Occur?

Cement stains often happen because of:

• Messy installation or repair work—spills or splashes of mortar or cement that workers don’t clean up.
• Foot traffic in work zones—workers or machines track wet cement dust onto stone surfaces.

Accidental drips during jointing or grouting that dry and leave hard residue.

Once cement dries, it bonds tightly to polished or honed stone, needing special tools and cleaners for removal.

Why Harsh Acids Can Harm Polished/Honed Stone

Many people think strong acids remove cement residues well. But acids can seriously damage polished and honed stones, especially marble, limestone, or travertine. Using acidic cleaners can cause:

❌ Etching — acids eat away smooth surfaces, leaving dull, rough, or pitted spots.
❌ Discolouration — acids change the stone’s natural colour or finish.
❌ Surface weakening — repeated acid use breaks down stone, increasing wear and weather damage.

Safe and Effective Cement Stain Removal

Use a cleaner made for acid-sensitive polished and honed stones to remove cement stains safely.

✔ Breaks down hardened cement without harming the surface.
✔ Contains no harsh acids that cause etching or fading.
✔ Keeps the stone’s natural polish, colour, and texture intact.

Testing Before Full Use

Polished and honed stones differ in porosity and finish, so always test on a small hidden spot first. Testing helps you:

✅ Confirm the cleaner works safely on your stone.
✅ Estimate how much product you will need.
✅ Decide how long to leave the cleaner on for best results.

Why Use Expert-Designed Cleaners?

We know polished and honed stones need careful handling. Our cement stain removers balance strength and gentleness.

✔ Made especially for polished, honed, and delicate natural stones.
✔ Free from acids and harsh chemicals that cause permanent damage.
✔ Trusted by professionals and homeowners for safe, reliable results.

Cement stains on polished or honed stone can cause frustration, but the right product and method restore your stone safely. Avoid generic or acidic cleaners and always test first. Use a professional-grade cleaner to protect and keep your stone looking beautiful for years.