A simple test using a drop of water can determine if resealing is required in a certain area of the countertop. If the drop of water is absorbed rapidly once placed on the surface, then we recommend resealing that run of countertop.
If the water begins soaking into the stone immediately, then the stone needs to be sealed. This 'water test' enables you to see just how absorbent the granite is at a given time. A sealed stone absorbs liquid much slower.
Without this protective layer, substances such as oil, wine, or juice can penetrate the surface, leaving behind stains that are tough to remove. In addition, sealed granite countertops are easier to clean and maintain, which extends their lifespan and ensures that they remain the focal point of any room.
Standard Sealing Recommendations
Many professionals recommend sealing granite countertops at least once each year. If you cook frequently in your kitchen and use the countertops daily, you might need to reseal the granite even more frequently. This used to be the advice from stone professionals over the years.
Countertops need to be resealed every year, depending on how much you use them. If you'd prefer to leave the task to the pros, expect to pay between $170 to $350. When local granite countertop pros do the job, the seal can last longer.
If your granite countertop is properly sealed, liquids and oils will bead on top of it rather than seep into the stone. Grease can stain granite, as can colored liquids such as grape juice and wine. Sealing granite can also prevent etching, caused by cleaners or acidic foods such as lemon juice.
Though using a granite sealer can help you maintain the original finish to your stone, it won't necessarily restore the shine to the countertops. A stone restoration professional can fix this issue for you.
In general, granite with a darker color is likely to be less permeable. It might not need to be sealed at all.
This soft, malleable material can trap dirt within its layers and, as it accumulates, can give the surface a yellow hue. This issue is commonly reported when someone believes their granite counters need repolishing. Wear on surfaces is typically caused by grinding sand or dirt underfoot.
Granite comes sealed when you first have it installed.
Quartz is actually harder than granite and thus, more durable. In fact, quartz is nearly indestructible, and because it isn't porous like granite, it's easy to keep your countertops relatively bacteria-free. Be careful with cooking pans though: Quartz can be damaged by excessive heat, so use heating pads at all times.
Sealing granite is important if you want to protect your investment against stains, etches, etc. After sealing it is important to polish the granite not just to keep them looking as good as new, but also durable. It will last with proper maintenance - clean, seal and polish.
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.
The quality of the granite can be tested by subjecting it to different chemicals. Granite has a very specific reaction to lemon and can determine a few characteristics for you. If the lemon is absorbed then the material is porous or not polished properly.
We recommend and use a fluorocarbon alphatic resin sealer. Unlike silicon sealers, it will not evaporate or go through any type of natural deterioration. That is why the particular brand we use for all our sealing, MB Stone MB-4 impregnator, comes with a 10 year warranty.
The water test is a quick, simple way to check your granite countertop seal. All you need to do is pour a small amount of water (about 3 inches in diameter) onto various sections of the counter and wait for a reaction. You can tell if the water has been absorbed into the stone because the granite will darken.
Classic Appeal:
White granite countertops are a classic choice that never goes out of style.
Many sealers applied at the factory last 10-15 years, while store bought (DIY) sealers may only be good for 6-12 months. So it's important to know if you had a sealer before, and what type.
Frequent use of vinegar, Windex or bleach will dull the granite and weaken the sealant. Instead, a little soap and water should do the trick. Add dish soap and warm water to a sponge, get a good lather and begin cleaning. Avoid using abrasive pads, as granite can be scratched.
Many homeowners seal their granite counters once or twice a year, although you can seal them more regularly if you wish because it is not possible to over-seal natural stone.
Prep the Area
Use a mild, antibacterial dish detergent mixed with warm water and a soft sponge or cloth to gently remove all residue and buildup. Do not use steel wool, hard bristles, or other cleaning tools that could scratch the granite, and avoid abrasive or acidic cleaning solutions that could damage the surface.
In comparison to other countertop materials, granite has the capacity to last longer than other materials. Most granite and other natural stones can last anywhere from 100 years or more; whereas marble countertops last an average of 20 years.
While granite is usually cheaper, some high-end options can be pricier than quartz. Your choice often depends on your style and lifestyle. Think about the long-term costs when deciding. Granite can last over 30 years with the right care, and quartz is just as durable but easier to maintain.
Sealed granite will darken in color when wet, while unsealed granite will absorb the water quickly. Sealed granite will also have a more uniform color, as opposed to the natural variations in color that you would see in unsealed granite.