How to Remove and Clean Stains from Granite and Marble

Granite and marble are generally hard surfaced rocks with a granular appearance, hence very effective in creating kitchen tops or tables. However, they may be quite hectic to clean once they get stains due to the hardness of the surface. Since they are both derived from the earth, they are also porous. They are also very hard and heavy, but with a unique array of colors, hence making them easy to stain. This is due to their material that comes from complex reactions in the earth. This article reviews how you can remove and clean stains from granite and marble countertops or even kitchen tops.

Basics Things That You Should Know

There are a number of things you need, as well as factors you need to consider when cleaning stains from granite or marble countertops. First of all, it is important to know that both granite and marble are made with material that is easy to stain. Some of the basics you need can be listed as follows;

Poultice: This refers to a liquid cleaner or chemical that is mixed with absorbent material. It has the capability of forming a paste with the consistency of peanut butter.

Alkaline cleaners: These refer to cleaning material with alkali (mainly potassium hydroxide) and detergents or surfactants.

Acidic cleaners: These refer to acidic products which can also be used on granite, marble or siliceous stones.

How to Clean Marble and Granite

Marble and granite countertops or material can be cleaned using a number of items, namely; acidic cleaners, alkaline cleaners or even poultice. If you opt to clean with a poultice, there are a number of steps that you need to follow;

Step 1: Spread the poultice over a stained area to a thickness of 1/4″ to 1/2″ with wood or plastic spatula. This ensures the stained place is entirely covered for the ability to clean.

Step 2: Cover with plastic: This refers to a light plastic material which needs to be taped to the surface, to make the cleaning concentration work. This should be left for approximately 24-48 hours such that it can work effectively.

Step 3: Peel off the Plastic from the Granite or Marble Surface: Once you peel off the plastic from the surface, the liquid chemical will draw out the stain to the absorbent material. It may take several applications based on the nature of the stain.

Alternatively, if you opt to clean with alkaline or acidic cleaners, here are the procedures that you need to follow:

Step 1: Apply the acid/alkaline cleansing solution to the stained surface such that the reaction can work on the surface.

Step 2: Remove the acid/alkaline solution through a thorough water rinse: It is important to use plenty of water when cleaning the acid to ensure it is completely wiped out. One of the most commonly used acid cleaners is hydrofluoric acid, with some phosphoric acid added to prevent the development of rust.

Final Verdict

When cleaning granite and marble countertops, it is very important first to consider the type of stain. Some stains may be cleaned by a single procedure, whereas others may need several procedures, especially the hard stains. It is also important to ensure you get the cleaning solutions from professionals. If you are using acidic or alkaline cleaners, it is also important to ensure they are not left for too long as they may leave a silica deposit almost impossible to remove. It is also very important to use safety precautions and protectives when handling these products.