Unsealed granite counters are susceptible to stains from food, drinks, and other spills. Since granite is porous, is can quickly absorb food and liquids, which is then hard to get up. Sealing your countertops is the best way to avoid stains like this.
Granite is a Porous Material
Although granite is a hard and durable stone, granite is porous. This means if you spill something and your granite countertops aren't sealed, it could cause permanent stains and unsightly marks. Brand new granite counters often have a sealant applied during installation.
In its natural state, granite is porous and absorbs liquids easily, therefore it needs to be sealed to make it stain-resistant. A sealant will create a barrier to prevent liquids and foods from absorbing into the countertop.
You most likely need to reseal your granite countertops at least once a year. However, these factors could affect how often you need to apply a new protective layer to your stone surfaces: Type of granite: Your one-of-a-kind granite countertops have unique maintenance requirements based on their porosity.
Clorox and Lysol sprays and wipes are convenient, but they are not safe for granite countertops. They rarely contain bleach, but they do generally contain citric acid to help remove soap scum. Avoid using bleach as well.
The answer is yes, you can permanently seal your granite and that will give you a completely maintenance-free countertop.
Resealing granite prevents permanent damage to the stone and restores the original, factory shine. There are many sealers to choose from, but your granite countertops retailer should recommend the best product for your exact variety of stone.
It is like any other natural material. Wood has its grain, and stone has its pores. Fortunately, it's easy to seal a granite countertop. It takes just a few minutes and requires little more than a granite sealer and a clean pad.
Granite is Heat Resistant
Placing a hot pan on a well-maintained granite slab will not cause it to crack or weaken. Just remember that repeatedly placing a very hot pan on the same spot may cause granite to discolor.
It's important to understand that an impregnating sealer should not alter the color or finish of the granite counter. It won't make a polished surface dull, or a matte counter shiny. It's invisible when dry.
A few '15-year' sealants are some of the best chemically engineered sealers available. They penetrate deeply into the stone and provide superior water & oil repellency. However, like all sealers, '15- year' sealers cannot prevent etching and unfortunately, they do not prevent stains for 15 years either.
The truth is that most (but not all) granite countertops need to be sealed. There is a simple test to see if you need to seal the countertop you're choosing and determine when your countertop needs to be resealed (typically every 5-7 years, depending on the sealant).
Unsealed granite countertops will soak up anything that is spilled on the surface. Put a few drops of water on the granite, leave it on the countertop for a few minutes. If you come back and see that the water is gone and soaked into the granite it is time for the stone to be resealed.
Your granite countertop is sealed when installed, and it is recommended that it be resealed one year after installation or sooner if you start to notice water stains that evaporate slowly in a given area. You might also consider sealing granite if you are selling your home.
The fact is, the porous nature of granite can lead to absorption of water through tiny holes that are not visible to the naked eye. Just a small amount of water left to dry on your countertop may not cause a problem but if it is left for a very long period of time, it could cause the counter to darken in that one spot.
Choosing the Right Sealant is Essential
For this reason, look for products in the class known as impregnating stone sealers. They are chosen by professional contractors for sealing granite, marble, and slate countertops. The top-rated product in this class is Tenax Hydrex Impregnating Stone Sealer.
If it beads up, you have a secure seal. If after a few minutes the water has soaked into the granite, then it's time to reseal the stone. DON'T: Use harsh or abrasive cleaners and sponges. Windex; acidic cleaners, like vinegar, lemon, lime; or anything with ammonia or bleach should be avoided.
Since granite countertops have a sealant on them to keep them shiny and stain-resistant, you want to avoid using anything too acidic or basic on the granite. Frequent use of vinegar, Windex or bleach will dull the granite and weaken the sealant.
If your countertops are damaged, badly dulled, if they've never been thoroughly cleaned or if they have etching, a professional can completely refinish and reseal the granite.
Over time, various factors like improper cleaning, hard water deposits, and lack of regolar polishing can contribute to the doll appearance of granite countertops. It's essential to identify these signs early on to take the necessary steps to restore your granite's lustrous shine.
ANSWER - Even though you sealed your granite counter top it doesn't prevent staining if the coffee spill was left on for an excessive amount of time or if it wasn't cleaned completely. The stain should be removable.
There are a few reasons why granite countertops last as long as they do. First off, they are natural stones found deep in the earth and are already thousands of years old. Before granite is dug up, it's molten rock that cools off. Then once it cools down, it raises towards the earth's surface.
However, vinegar should never be used on your granite countertops. Vinegar is made up of acids that can severely harm your granite. Even if it is diluted, vinegar may still leave acids on your granite countertops. This can cause your natural stone countertops to etch.
Daily granite countertop care is as easy as cleaning with a gentle cleanser like Murphy's Oil Soap or mild dishwashing liquid. If needed you can use a synthetic scrubbing pad to clean your granite counter. With the proper maintenance, granite countertops stay new-looking for a long time.