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There is no other counter surface that is more durable than Granite. Following a few simple steps can preserve the finish of granite counter tops.

1. Loss of shine:

The loss of the high polish on certain marble and granite can be attributed to wear. This is especially true of marble, since it is much softer than granite. The bottoms of someone's shoe acts like sandpaper on a stone floor surface and over time will wear the polish off. To prevent excessive wear it is important to keep the floor dust mopped, and place walk mats at all entrances. To repair a worn stone surface, it will be necessary to have a professional hone and polish it.

2. Etching:

The dull spot created when liquids containing acids are spilled on marble is called etching. Marble and limestone etch very easily. Granite is more acid resistant and will rarely etch. To prevent etching, avoid using cleaners and chemicals that contain acids. Bathroom cleaners, toilet bowl cleaners and lemon cleaners commonly contain acids and will also etch. Certain drinks and foods contain acids and will also etch. Light etching can be removed with a little marble polishing powder. Deep etching will require resurfacing of the stone.

3. Staining:

All stone surfaces can become stained very easily. Most foods, drinks, ink, oil and rust will stain marble. Once a stone becomes stained, it can be very difficult to remove. To prevent staining, clean the spilled material as soon as possible. Blot the spill with a clean paper towel or cloth. If this does not remove the stain then a process called "polluting" may be needed. To prevent staining, sealing the stone with a good quality penetrating sealer is important.

4. Efflorescence:

Efflorescence appears as a white powdery residue on the surface of the stone. It is a common condition on new stone installations or when the stone is exposed to a large quantity of water, such as flooding. This powder is a mineral salt from the setting bed. To remove efflorescence, do not use water, buff the stone with a clean polishing pad or #0000 steel wool pad. The stone will continue to efflorescence until it is completely dry. This drying process can take several days to as long as one year.

5. Spalling, Flaking & Pitting:

If your stone is developing small pits or small pieces of stone are popping off the surface (spalling) then you have a problem. This condition is common on stone exposed to large amounts of water or when deicing salts are used for ice removal. Like efflorescence, mineral salts are the cause for spalling and pitting. Instead of the salts depositing on the surface of the stone, causing pressure within the stone and therefore the stone spalls, flakes or pits. Unfortunately, once a stone begins to spall it almost impossible to repair. It is recommended that the stone be replaced.

6. Yellowing:

There are several reasons why a stone will turn yellow: Embedded dirt and grime can give the stone a yellow, dingy look. Waxes and other coatings can yellow with age. Certain stones will naturally yellow with age. This caused by oxidation of iron within the stone and especially problematic white marbles. If the yellowing is caused by dirt or wax build up, clean the stone with an alkaline cleaner or wax stripper. If the yellowing is the result of aged stone or iron oxidation, live with it, it is not coming out.

7. Uneven Tile-Lippage:

Lippage is the term given to tiles that are set unevenly. In other words, the edge of one tile is higher then the next. Lippage is the result of a poor installation. If the lippage is higher than the thickness of a nickel, it is considered excessive and the tile will have to be ground to flatten the floor. This will require the services of a professional stone refinishing contractor.

8. Cracks:

Cracks in stone tiles can be caused by settling, poor installation, excessive vibration, especially if you live in California, etc. Cracks can sometimes be repaired by filling with a color-matched polyester or epoxy. Before a crack is repaired, it is wise to find out how and why the cracked occurred in the first place otherwise it may crack again.

9. White Stun Marks:

Stun marks appear as white marks on the surface of the stone and are common in certain types of marble. These stuns are the result of tiny explosions inside the crystal of the stone. Pinpoint pressures placed on the marble cause these marks. Stun marks can be difficult to remove. Grinding and/or honing can reduce the number of stuns, but some travel through the entire thickness of the stone.

10. Water Rings/Spots:

Water rings and spots are very common marble tabletops. These spots are hard water minerals such as calcium and magnesium. These minerals are left behind when the water evaporates leaving a ring or a spot. To remove these spots use a marble polishing powder. Deep spots may require honing. To prevent spots on counters and tabletops, frequently apply a good stone paste wax.

Other Stone Problems:

Many problems can occur with some stone surface. The above ten are the most common. The following is a quick problem solving technique that will help identify other stone problems that might be encountered.

  • Identify the problem - Is it discolored, etched, cracked or what?
  • Cause of the problem - What happened to cause the problem? Identifying the cause will often lead to the solution.
  • Stone Type - Identify the stone type. Is it marble, granite, limestone, slate, etc.?
  • Installation - Check the installation, is it installed properly?
  • Age - How long has the problem existed? Old problems are difficult to impossible to cure.
  • Maintenance Procedures- How is the stone being maintained? Could the maintenance, or lack of, caused the problem?
  • Test the Solution- Perform a small test in an inconspicuous area to decide if your proposed cure will work effectively.

Stone Products Disclaimer

Today, more than ever, the beauty of natural stone is a favorite choice of designers, architects and homebuilders. For floors, walls and countertops there are a variety of natural stone surface finishes to choose from.

Regardless of which type of material used, all are susceptible to staining and surface wear. To ensure the natural stone provides a lifetime of beauty and function, proper stone care maintenance is recommended.

Natural Stone: All natural stone (granite, travertine, limestone, marble, slate and quartzite, etc.) are inherently subject to variation in shadings and markings and can vary from one shipment to another. Please be advised that each piece of natural stone is virtually unique. Its veining, shading, density and can vary from one box to another.

Understand that these qualities are inherent in the nature of the product. This is part of the beauty of natural stone. They are not considered latent defects and, therefore, Exclusively Yours: The Maui Home Design Center cannot be held liable for them.


Maui's Natural Stone & Tile Center

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Exclusively Yours25 South Kahului Beach Road, Kahului HI 96732
Office: 808-871-7595
Fax: 808-871-7059
Hours of Operation:
Monday-Friday 7:00am-5:00pm
Saturday 9:00am-5:00pm
Closed Sunday
Ceramic Tile Plus
25 South Kahului Beach Road, Kahului HI 96732
Office: 808-871-8674,
Toll free: 800-833-2748
Fax: 808-871-7059
Hours of Operation:
Monday-Friday 7:00am-5:00pm
Saturday 9:00am-5:00pm
Closed Sunday
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