Some botticino marble have areas that are soft. These soft areas are the cause of the dull spots you describe. The polishing powder is eroding these soft spots. There are several techniques for polishing these dull areas. First, do not use polishing... Read More
Stone & Tile Restoration
White thassos marble can be tricky to polish. One technique that works is to start polishing as you would normally polish. Normal is working the powder into a pasty consistency. Continue to work the slurry until it is totally dry. Continue to work... Read More
The wavy pattern you are describing is usually caused by honing with diamonds that are too flexible. Most of the time there is a flexible cushion where the diamonds attach to the drive pad. The diamonds float over the floor and do not hone the floor... Read More
The shiny edges are what we call “v” edges, since they normally form a “v” along two edges of the tile. You are correct in that these “v” edges are areas that are lower than the adjacent tile and your diamonds are not touching these areas... Read More
The blotchy pattern you are observing is probably moisture. When white marble becomes wet it darkens. When you apply water to the floor , as you do during the polishing procedure, you wet the floor and it darkens. The blotchy appearance will... Read More
Marble polishing powders are made of mild abrasives such as aluminum oxide and tin oxide. They also may contain an acid known as oxalic acid. The percentage of acid to abrasive differ somewhat from brand to brand. Powders with a high percentage of... Read More
Travertine is a marble that has a lot of holes. These holes are filed at the factory with a colored Portland cement. When you polish the marble the fillers do not take a polish. This is why you get dull spots. The only way to eliminate the dull spots... Read More
There are several ways to eliminate the white residue in the black grout lines. First you may want to add a stone soap to your rinse water. Stone soap will clean the grout lines. If this proves ineffective you can add a small amount of black dye to... Read More
There are several reasons why the polishing powder is dulling the marble. First, check to see if the powder you are using is a marble polishing powder and not granite polishing powder. Granite powders do not work effectively on marble and may dull... Read More
Certain brands of polishing powders contain shellac. If the powder has a yellow to gold tint to it, then it may contain shellac. The rainbow appearance and film is the shellac. Chances are you are using too much powder. Try repolishing the marble... Read More