Frequently asked questions
Does granite need annual sealing?Granite
Some natural stones benefit from impregnating sealers, while others may not need them. Ask your supplier about stone variety, porosity, finish, existing treatments and the sealer instructions. There is no universal annual resealing schedule. Sealing improves stain resistance; it does not make stone stain-proof or prevent acid etching.
- Natural Stone Institute — Care & Cleaning of Natural StoneSource checked: 2026-11-14
- Natural Stone Institute — Sealing Natural Stone CountertopsSource checked: 2026-11-14
How should I clean granite every day?Granite
Remove loose debris with a soft cloth. Use warm water with a neutral natural-stone cleaner or a mild dishwashing detergent suitable for the installed stone and treatment. Follow product dilution directions, rinse thoroughly and dry with a soft cloth. Too much soap can leave a film.
- Natural Stone Institute — Care & Cleaning of Natural StoneSource checked: 2026-11-14
Can granite stain?Granite
Blot spills promptly rather than spreading them. Clean with a suitable mild solution, rinse and dry. Use coasters, especially under beverages containing citrus or alcohol. A sealer improves resistance to absorption but does not make stone stain-proof.
- Natural Stone Institute — Care & Cleaning of Natural StoneSource checked: 2026-11-14
What should I avoid on granite?Granite
Avoid vinegar, lemon, acidic cleaners, scouring powders and harsh abrasive tools unless the exact surface documentation explicitly permits a product. Never mix household cleaning chemicals. Do not use acids to test an installed countertop. Do not attempt grinding, polishing or chemical stain removal without qualified guidance.
- Natural Stone Institute — Care & Cleaning of Natural StoneSource checked: 2026-11-14
Can I use vinegar on marble?Marble
Lemon, vinegar, acidic cleaners and some foods or drinks can etch marble. Staining is absorption; etching is chemical surface damage that changes the finish. Sealing may reduce staining but does not prevent acid etching. Ordinary soap cannot repair etching; persistent damage may need professional refinishing.
- Natural Stone Institute — Care & Cleaning of Natural StoneSource checked: 2026-11-14
Does sealing prevent etching?Marble
Lemon, vinegar, acidic cleaners and some foods or drinks can etch marble. Staining is absorption; etching is chemical surface damage that changes the finish. Sealing may reduce staining but does not prevent acid etching. Ordinary soap cannot repair etching; persistent damage may need professional refinishing.
- Natural Stone Institute — Care & Cleaning of Natural StoneSource checked: 2026-11-14
Why does my marble look dull?Marble
Oil may darken stone through absorption. Coffee, tea and wine can leave absorbed stains; acidic spills may also alter susceptible finishes. Water spots can be mineral buildup, while soap can leave residue. Dull areas may be residue, staining, altered finish or acid etching—not a diagnosis from appearance alone. If gentle cleaning does not resolve the mark, seek assessment instead of using stronger chemicals.
- Natural Stone Institute — Care & Cleaning of Natural StoneSource checked: 2026-11-14
How can I reduce marble staining?Marble
Blot spills promptly rather than spreading them. Clean with a suitable mild solution, rinse and dry. Use coasters, especially under beverages containing citrus or alcohol. A sealer improves resistance to absorption but does not make stone stain-proof.
- Natural Stone Institute — Care & Cleaning of Natural StoneSource checked: 2026-11-14
Does quartz need sealing?Quartz
Common nonporous engineered quartz does not need natural-stone sealing. Cambria explicitly prohibits sealers, penetrants and topical treatments. Confirm your exact product manual before applying any treatment.
- Cambria — Quartz Product CareSource checked: 2026-11-14
Can I put hot pans directly on quartz?Quartz
Engineered quartz is not universally heat-proof. Use solid trivets or suitable hot pads under hot cookware and heat-producing appliances. Rapid temperature changes or prolonged heating can damage the surface.
- Cambria — Quartz Product CareSource checked: 2026-11-14
Which cleaners are safe for my quartz brand?Quartz
Cambria, Caesarstone and Silestone have different product-care documents. Cambria directions were checked for this guide. Brand-specific Caesarstone and Silestone cleaning instructions are pending full current-product verification; follow your exact manual rather than a substituted recipe.
- Cambria — Quartz Product CareSource checked: 2026-11-14
Can quartz scratch?Quartz
Use cutting boards and avoid impacts at edges, sinks and dishwashers. Quartz is not scratch-proof or chip-proof. Deep scratches, chips and cracks need qualified assessment.
- Cambria — Quartz Product CareSource checked: 2026-11-14
What should I do about stubborn marks?Quartz
Residue, surface markings, heat exposure and chemical damage can look similar. A dull spot is not automatically a stain or acid etching. If warm water and approved mild cleaning do not resolve it, ask the manufacturer or a qualified surface professional before using stronger products.
- Cambria — Quartz Product CareSource checked: 2026-11-14
Is quartzite the same as quartz?Quartzite
Genuine quartzite differs from marble, but stone labels may be inaccurate and treatments can affect the installed finish. Unexpected dull or etched areas warrant checking the actual material with your supplier or a qualified professional. Never use lemon, vinegar or other acids as diagnostic tests on an installed countertop.
- Natural Stone Institute — Care & Cleaning of Natural StoneSource checked: 2026-11-14
- Use Natural Stone — A Deep Dive Into the Properties of QuartziteSource checked: 2026-11-14
Does quartzite need sealing?Quartzite
Some natural stones benefit from impregnating sealers, while others may not need them. Ask your supplier about stone variety, porosity, finish, existing treatments and the sealer instructions. There is no universal annual resealing schedule. Sealing improves stain resistance; it does not make stone stain-proof or prevent acid etching.
- Natural Stone Institute — Care & Cleaning of Natural StoneSource checked: 2026-11-14
- Natural Stone Institute — Sealing Natural Stone CountertopsSource checked: 2026-11-14
How do I clean quartzite?Quartzite
Remove loose debris with a soft cloth. Use warm water with a neutral natural-stone cleaner or a mild dishwashing detergent suitable for the installed stone and treatment. Follow product dilution directions, rinse thoroughly and dry with a soft cloth. Too much soap can leave a film.
- Natural Stone Institute — Care & Cleaning of Natural StoneSource checked: 2026-11-14
Why does my quartzite have dull spots?Quartzite
Genuine quartzite differs from marble, but stone labels may be inaccurate and treatments can affect the installed finish. Unexpected dull or etched areas warrant checking the actual material with your supplier or a qualified professional. Never use lemon, vinegar or other acids as diagnostic tests on an installed countertop.
- Natural Stone Institute — Care & Cleaning of Natural StoneSource checked: 2026-11-14
- Use Natural Stone — A Deep Dive Into the Properties of QuartziteSource checked: 2026-11-14
