Note: Some experts will recommend sealing granite countertops every “6-12 months” or “3-5 years”, but there is no hard and fast rule.
Before applying a new coat of sealant, take the "water test." Take 1/4 cup of water and pour it on the countertops. If the water stays "beaded" on top, your counters should not need sealant. However, if the water appears to seep into the surface or you notice a dark spot, you should seal the granite.
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.
Protect Your Countertops With Stone Sealing
Throughout the life of your countertops, a sealer is necessary to keep your counters looking their best and to protect against scratches, stains, and overall dullness.
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.
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.
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'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).
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.
Buy a polishing powder designed for natural stone countertops. You'll generally have to mix the powder with water to form a paste. Then “polish” problem areas with a soft cloth. Some products require you to leave the paste on overnight (mostly for stain removal).
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.
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.
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.
For regular granite cleaning, the best cleaner is nothing more sophisticated than mild dish soap diluted with water. (You can also make a homemade granite cleaner made with a base of rubbing alcohol.) Wet a sponge with water from the tap and squirt dish soap into its center. Bear in mind that granite scratches easily.
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.
Sealing is a simple process. First, thoroughly clean the countertop surface with water and ph-neutral dish detergent, rinse with clean water and dry. As a final step it's a good idea to use a cloth saturated with denatured alcohol (available in the paint department) to do a final wipe down.
Generally, quartz is less expensive than granite, but many factors influence the total price of a project. In this article, we'll look at the differences between natural granite stone and engineered quartz stone and the factors that affect pricing so you can determine which material is best for your design project.
Keep the Surface Dry for 24 Hours
Once you're done sealing your stone, you can place items on the countertop and use the surface, but make sure it stays completely dry for at least 24 hours before polishing, as this gives the sealer time to cure and bond with the granite's pores.