American Marble


All cultured marble, onyx and granite products have a gel coat finish that provides a non-porous, stain resistant surface.

Proper care will ensure lasting beauty, elegance and function. Normal cleaning requires soap or a mild detergent. Dow and Lysol bathroom cleaners work well. Other products may be used, but be sure to read the label to ensure the product is safe to use.

Do Not Use Scouring or Abrasive Cleaners. Repeated use will dull the gel coat finish.

Due to their non-porous nature, cultured marble products resist most stains. However, extended exposure to harsh chemicals such as ammonia or bleach should be avoided because they may cause discoloration. Products such as nail polish, polish remover, paint remover, etc. may cause permanent damage.

Occasional treatment with a high quality liquid or paste wax will renew the finish and prevent soap buildup. Avoid colored waxes. Gel Gloss cleaner and polish is designed for cultured marble products and is available at hardware stores, building supply stores and American Marble.

Minor stains and scratches may be removed using 1200 grit wet sandpaper with a small sanding block followed by a good polish. Be cautious not to oversand through the gel coat, which will result in a permanent dull spot.

Avoid extended or frequent exposure to extremely high temperature water. Household hot water heaters should be set in the normal range of 120 degrees F. A separate cast iron or porcelain bowl will allow for a bowl change if it should become damaged.

How To Repair Cultured Marble & Onyx

Caution: Repairing cultured marble/onyx requires experience. We cannot guarantee satisfactory results.

1. Patching a hole is similar to filling a tooth. Use samples to practice before attempting on the finished product.

2. Area should be clean and dry.

3. Scrape or dig out area to be filled with a razor blade knife.

4. Put 1 1/2 ounces of gel coat in paper cup.

5. Add 10 drops of catalyst.

6. Add 1/8 teaspoon (a pinch) of Titanium (white powder) and mix for four minutes. Be sure that all the lumps are dissolved.

7. Place mixture in hole using a toothpick. Fill slightly over the hole leaving a small mound around hole. This will allow for shrinkage.

8. Let dry for at least four hours. Overnight is better.

9. When patch is dry, sand with 1200 grit wet/dry sandpaper using water and a small sanding block. Do not oversand. Oversanding will damage the finish.

10. Buff area with buffing compound to polish.

11. Liquid cleaners and Gel Gloss cleaner and polish will protect the product well. Do not use abrasive cleaners.

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Serving the entire San Francisco Bay Area Since 1970

4881 Sunrise Dr, Suite A
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Phone: 800-801-2284
Fax: 925-370-0477

Hours: Monday thru Friday - 7:00 a.m. to 4:00 p.m.
Saturday by appointment only.