| The answer is YES. All Stone surfaces need to be | | | | it will be to seal the stone. |
| sealed. However many factors need to be | | | | To get a general idea of how absorbent the |
| considered when choosing the correct sealer. First, | | | | stone is, place several drops of water on the |
| the type of stone. All stone is not created equal. | | | | surface of the stone and time how long it takes |
| How porous a stone is and how fast it absorbs | | | | for the water to completely disappear. If the |
| liquids is called the absorption coefficient. This | | | | water disappears in under one minute, consider |
| coefficient is extremely important when choosing | | | | the stone very porous. If it take up to 3-4 |
| a sealer. Granite generally will have a higher | | | | minutes, consider it porous. If it takes more than |
| absorption coefficient than a polished marble. | | | | 5 minutes, consider it slightly porous. This simple |
| Limestone can be extremely absorbent. The | | | | test will also give a good indication of the quantity |
| higher the absorption coefficient, the more difficult | | | | of sealer needed to protect the entire area. |