Typically, granite should be resealed every 12 to 18 months. Nevertheless, there are some other factors that come into play when determining how often to reseal granite countertops. For example, a lighter colored granite will need to be resealed more often because it is typically more porous.
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 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).
Note: Some experts will recommend sealing granite countertops every “6-12 months” or “3-5 years”, but there is no hard and fast rule.
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.
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.
The answer is yes, you can permanently seal your granite and that will give you a completely maintenance-free countertop.
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.
A simple water test will help you determine if sealer is needed. Pour about a quarter cup of water on a few areas of the counter. See how long it takes for the water to absorb. If the water absorbs into the stone in less than five minutes, the stone does need to be sealed.
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.
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.
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.
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.
Use a spray bottle, cloth, or brush to apply it. The entire surface should be damp, but not soaked. Give the sealant time to absorb into the stone. On average, it should take about 20 minutes, but take care to read the directions on the bottle of sealant for specifics.
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.
Keep surface dry for 24 hours after the application process is complete. This is so the seal can completely cure and bond with the pores of the stone. After 24 hours perform the water test on all key areas of the surface.
As good as a cleaner for windows and other glass surfaces, Windex has some elements on its compositions that can permanently damage granite when used for a long time. For that reason, you should never use Windex on granite.
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. Frequent use of these chemicals will dull and weaken the sealant over time. Basically, the harsher the cleaner, the quicker it will break down the sealant.
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.
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.
How often you re-polish your granite is completely a matter of its appearance. Most granite surfaces require remedial polishing every five to 15 years, depending on the traffic or use they receive. Your newly polished granite must, of course, then be re-sealed to protect it from stains and other harmful issues.
After all, will one splatter of spaghetti from Sunday dinner or an accidental wine spill ruin your countertop? The answer is that while no material is completely 100-percent stain-proof, granite countertops are surprisingly stain-resistant— and that includes light colors, too!