Reviewed August 15, 2026
Save to PinterestThe short answer
Clean a countertop according to the exact material and finish. Use a soft cloth and a product approved by the stone or surface manufacturer, blot spills promptly, protect every surface from concentrated heat, and avoid mixing cleaners. A penetrating sealer can improve stain resistance on a porous stone, but it does not make stone stain proof and cannot stop acid etching on marble or other calcium-based stone.
Start with the exact material
Granite, marble, quartzite, quartz surfacing, porcelain, and other products do not share one care rule. Keep the material name, manufacturer, finish, and care sheet with the project record so the household can follow the right instructions.
A sealer helps with stains, not etching
An impregnating sealer can slow absorption in a susceptible stone. It does not form an acid shield, stop every stain, or create one universal resealing schedule. Review the selected stone and sealer rather than defaulting to an annual promise.
Respond to a spill before experimenting
Blot rather than spread the spill. Identify whether it is oil, organic material, rust, cosmetics, acid, or an unknown cleaner. Do not combine chemicals. Photograph the area and ask for material-specific guidance before using an abrasive or poultice.
Know when to request service
A spreading crack, loose sink, changing seam, deep chip, persistent stain, broad etch, or support concern deserves professional review. Send a wide photo, a close photo, the material name, the project address, and what happened.
- Material and manufacturer
- Wide and close photographs
- Cleaner or spill involved
- Date and change over time
Turn research into a working range
Share the room, material direction, and rough dimensions.
Questions homeowners ask us
Does granite need sealing every year?
Not necessarily. The stone, finish, exposure, and sealer determine whether and when additional treatment is useful.
Can sealer prevent marble etching?
No. A penetrating sealer can reduce absorption, but acids can still react with calcium-based stone and dull the finish.
Does granite create a radon problem?
EPA says granite countertop radiation levels are not typically high and granite is not considered a key contributor in the average home. EPA recommends testing homes for radon regardless of countertop material.
Related planning guides
Sources used for this guide
Turn the guide into a project plan.
Bring room photos, rough dimensions, and the choices you have already made. We will help identify the next decision and compare the physical materials in Tyler.
Schedule a planning appointment