LIMESTONE CARE GUIDE.

• Regular Cleaning: We recommend to clean Engineered bench-tops daily with our favourite cleaner from GEAL CB90. Use a Microfibre Cloth to avoid scratching the surface. Buff the surface dry with a second Micro-fibre cloth to prevent water spots.
• Avoid Harsh Chemicals: Avoid using acidic or abrasive cleaners, as they can damage the sealant and dull the surface. Stick to pH-neutral cleaners specifically designed for natural stone such as GEAL CB90.

• Avoid Heavy Impact:
  Limestone is softer and more porous than other stones, making it more susceptible to chips or cracks. Avoid dropping heavy objects directly onto the surface.

  Use Cutting Boards:
  Always use a cutting board when chopping or slicing. Limestone scratches more easily than granite or quartzite and is not designed for direct cutting.

  Avoid Sitting or Standing:
  Do not sit or stand on limestone benchtops. The added weight can lead to stress fractures, especially near joins or cut-outs.

  Clean Spills Promptly:
  Limestone is highly porous and can stain easily. Wipe up spills immediately—especially acidic or oily substances like wine, lemon juice, or cooking oil.

  Use pH-Neutral Cleaners Only:
  Avoid acidic or alkaline cleaners. Stick to pH-neutral, stone-safe products to prevent etching and surface degradation.

• Sealing Limestone – What You Need to Know

  Importance of Sealing:
  Limestone is highly porous and prone to absorbing liquids, which can lead to deep staining and etching. Sealing helps form a protective barrier to reduce the risk of damage and makes cleaning easier.

  Frequency:
  Limestone should generally be sealed every 6–12 months, depending on usage and exposure to moisture or staining agents. You can test whether resealing is needed by placing a few drops of water on the surface—if it darkens or absorbs, it’s time to reseal.

  How to Seal:
  Clean the surface thoroughly using a pH-neutral stone cleaner and allow it to dry completely. Apply a high-quality limestone sealer evenly across the surface, following the manufacturer’s instructions. After the recommended dwell time, wipe away any excess and buff gently if required.

  Nu-Cover® Seal:
  If Nu-Cover® has previously sealed your limestone surface, we recommend continuing with our sealing service. This ensures consistency in the sealing product and application technique. Our technicians will also perform a full health check of your stone and advise you on any maintenance or repair needs.

Chips in limestone benchtops are not uncommon due to the stone’s softer nature. They typically occur from accidental impact or pressure on vulnerable areas.

Heavy Objects:
Dropping heavy cookware, appliances, or other solid items onto the limestone surface can result in chips—particularly along the front edge or near sinks.

Sharp or Hard Items:
Metal utensils, tools, or other dense items can cause damage if they strike the limestone with force. The surface is less resistant to impact than harder stones like granite or quartzite.

Edge Impact:
Limestone edges are especially prone to chipping. Direct impact or leaning heavily on corners can lead to visible damage over time.

Professional Repair for Limestone Chips

Professional repair is essential to restore both the appearance and structural integrity of your limestone benchtop. Our experienced technicians use specialised tools and stone-safe materials to rebuild chipped areas, carefully matching the colour and texture of the surrounding stone.

Submit a Repair Request
If you notice a chip in your limestone surface, it’s important to act quickly—unaddressed chips can worsen over time. Please lodge a repair request through our IWARRANTY portal. Once submitted, our team will assess the issue and arrange a convenient time for repair by a Nu-Cover® certified technician.

• Scratches and Marks on Limestone Benchtops

  While limestone is beautiful and elegant, it is more susceptible to surface damage than harder stones. Scratches can occur from common kitchen items and everyday use.

  Common Causes:
  Dragging unglazed pots, ceramic vases, or cutting directly on the stone can scratch your limestone benchtop. These scratches often appear lighter in colour and may be felt with a fingernail.

  Metal Marks vs. Scratches:
  Soft metals like aluminium or steel can leave grey or dark streaks that resemble scratches but are actually surface marks. These can often be removed using fine (000) steel wool and a little water. Gently rub the area, checking every few seconds until the mark is gone, then dry the surface thoroughly.

  Submit a Repair Request
  If you notice a deep or wide scratch in your limestone benchtop, we recommend booking a professional repair. Submit a request via the IWARRANTY portal, and our Nu-Cover® team will assess the damage and arrange a convenient time for restoration.

• • Oil-Based Stains:
    • Use a poultice made of baking soda and water or a commercial degreaser designed for natural stone. Apply the poultice to the stain, cover it with plastic wrap, and let it sit for 24-48 hours. Remove the poultice and rinse the area with water.
  • Organic Stains:
    • Mix hydrogen peroxide with a few drops of ammonia and apply it to the stain. Let it sit for a few minutes before rinsing thoroughly with water.
  • Rust Stains:
    • Use a commercial rust remover specifically designed for natural stone. Follow the manufacturer’s instructions carefully to avoid damaging the granite.
  • Water Stains:
    • Remove mineral deposits with a mixture of equal parts water and white vinegar. Apply the solution to the stained area, let it sit for a few minutes, and then rinse thoroughly. Dry the area with a microfiber cloth.

  Professional Assistance

  If a stain persists despite your best efforts, it’s time to call in the professionals. Our expert technicians can assess the stain and apply advanced techniques to remove it without damaging your granite benchtop. Contact us through the IWARRANTY platform to schedule a service appointment.

• Understanding Stains on Limestone

  Limestone is a naturally porous stone, which makes it particularly vulnerable to staining if not properly sealed and maintained. Common staining substances include:

  • Oil-Based Stains: Cooking oils, grease, and some cosmetics can soak into the stone, leaving dark patches that are difficult to remove without poultice treatment.

  • Organic Stains: Coffee, wine, fruit juices, sauces, and vegetables like beetroot or spinach can cause yellow, brown, or reddish discolouration if not cleaned promptly.

  • Rust Stains: Prolonged contact with metal items can cause rust marks to develop, often appearing as orange or reddish-brown stains.

  • Water Marks and Mineral Deposits: Hard water can leave chalky white spots or rings, especially around sinks or taps where water often pools.

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  Preventing Stains on Limestone

  Seal Your Limestone:
  Due to its high porosity, limestone should be sealed regularly to help protect against liquid absorption. Resealing is recommended every 6–12 months depending on use.
  Test by sprinkling a few drops of water—if the surface darkens within a minute, it’s time to reseal.

  Clean Spills Immediately:
  Promptly blot (don’t rub) spills with a soft cloth or paper towel. Rubbing can spread the stain or push it deeper into the stone.

  Use Protective Barriers:

  • Always use coasters under glasses—especially for wine, juice, or acidic drinks.

  • Place mats or trays under items like olive oil, sauces, or cleaning products.

  • Use cutting boards when preparing food to avoid direct contact with staining substances.

  Routine Cleaning:
  Use a pH-neutral, stone-safe cleaner for daily cleaning. Avoid harsh or acidic products, including vinegar, citrus, or bleach-based sprays.
  After cleaning, dry the area thoroughly with a soft microfiber cloth to prevent water spots.

• Professional Repair for Broken or Dropped Limestone Joints

  Limestone is a softer, more delicate stone that requires expert handling when joints have separated or dropped. Professional repair ensures the joint is structurally reinforced, visually seamless, and matched carefully to the original stone.

  Submit a Repair Request
  If you notice a broken, separated, or dropped joint in your limestone benchtop, it’s important to act quickly—unresolved movement can lead to cracking or further weakening of the surrounding stone.
  Please lodge a repair request through the IWARRANTY platform. Our Nu-Cover® certified technicians will assess the issue and arrange a time for professional repair to restore your benchtop safely and accurately.

• Limestone requires specialised care when an under-mount sink has dropped or become unstable. Our expert technicians use appropriate adhesives and secure brackets designed for natural stone to ensure a strong, lasting fix that won’t compromise the integrity of the surrounding stone.

  Submit a Repair Request
  If your under-mount sink has dropped or separated from your limestone benchtop, it’s important to address it quickly to avoid water damage or further weakening of the stone.
  Please lodge a repair request via the IWARRANTY platform, and our Nu-Cover® team will assess the issue and schedule a convenient time for professional repair.

• Polishing:
  Limestone has a natural matte or honed appearance. If a refreshed look is needed, use a limestone-safe conditioning product designed to enhance the surface without altering its natural finish. Always follow the manufacturer’s instructions and avoid excessive application.

  Avoid Waxes and Unapproved Polishes:
  Do not use waxes or general-purpose polishes. These can leave behind residue, attract grime, and diminish the appearance of the surface over time.

• Regular Cleaning:
  Clean silicone joints and edges using a mild, pH-neutral cleaner. This helps prevent the buildup of dirt, oils, and grime.
  Avoid using abrasive pads or harsh chemicals, as they can damage both the silicone and the surrounding limestone.

  Keep Surfaces Dry:
  After cooking or cleaning, dry the area around the silicone thoroughly. Excess moisture can lead to mould, especially in poorly ventilated spaces.
  Proper airflow and regular drying help maintain hygiene and prevent discolouration.

  Inspect and Maintain:
  Check the silicone around your limestone benchtop regularly for signs of mould, separation, or wear. Addressing early issues can help avoid more costly repairs.

  Use Quality Sealants:
  When replacing or installing new silicone, always choose a premium, mould-resistant product designed for use with natural stone. These options provide stronger adhesion and longer-lasting protection.

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  Addressing Silicone Issues

  Cleaning Discoloured Silicone:
  Use a diluted bleach solution or stone-safe mould remover to clean stained or discoloured silicone. Apply gently, leave for a few minutes, then rinse thoroughly and dry.

  Replacing Damaged Silicone:
  If the silicone is cracked, peeling, or beyond cleaning, it must be replaced. Carefully cut away the old sealant using a utility knife or scraper, clean the area thoroughly, and ensure it is completely dry before applying fresh silicone.

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  Submit a Repair Request

  If you’re unsure or the silicone damage is affecting your limestone installation (such as near sinks or joins), please lodge a repair request through the IWARRANTY platform. A Nu-Cover® technician will assess the issue and arrange a suitable time for professional resealing or repair.

• Regular Inspection:
  Periodically check your limestone benchtops for signs of staining, dullness, surface wear, or joint movement. Early intervention helps preserve both the appearance and integrity of the stone.

  Professional Maintenance:
  To keep your limestone in optimal condition, consider scheduling a Nu-Cover® technician annually. (A fee may apply.) This service includes a full health check, sealing assessment, and expert advice tailored to your benchtop’s condition and usage.