Well it may be that the stone sealer was not applied effectively.
If you sealed the granite will make darker.
If you notice water quickly staining and darkening the stone even after a sealer was applied.
Have you tried a poultice to see if it will draw out the discoloration.
If you notice within 30 minutes that a dark mark or ring has started to form this meansthe seal has been penetrated and you should apply a fresh coat of granite sealer as soon as possible.
You can test the strength of your granite s seal by pouring water about 3 inches in diameter on the surface and letting it sit for 30 minutes.
Granite is one of the strongest natural materials that you can have in your home.
Dark granite colors such as coffee brown black and tan brown are denser compared to light colored granite.
Basically if it darkens in 10 minutes or less you need to apply a granite sealer.
This increased density renders the granite less leaky and less prone to staining risk.
If the dabbed surface gets darker then you ll need a solvent based sealer to protect against oil based stains.
But it takes a lot longer to absorb after sealing granite.
Generally speaking darker colored granite usually does not become darker after applying sealer and if it does the difference is difficult to notice.
If the granite gets darker with either of the 2 tests then it needs to be sealed.
To determine if the sealer will make your granite darker conduct a test.
Sedelberg you have to seal granite periodically so even if it was sealed 10 years ago it probably should have been sealed again multiple times since then.
Simply putting a sealer on the countertop does not mean that it is sealed.
If your countertops are not properly sealed the oil may stain.
However the exact time it takes 1 3 8 15 minutes will tell you more specific and helpful information about your granite.
What can you do about granite chips.
Steps to fix the discoloration.
Rub it over the lighter spot or a portion thereof.
Believe it or not the color of your granite countertops can also determine your sealing frequency.
Especially if the sealer is lower quality.
Lighter colored granite countertops are more porous meaning they are more likely to stain than darker colored granite countertops.
I would try that a mixture of pure acetone that you get from a beauty supply store and baking soda.
Lighter colored less dense granite can potentially be made darker by sealer.
If your granite counters are routinely exposed to water dark spots may appear if the surfaces aren t frequently sealed.
This will help you determine if an oil stain will penetrate into the granite.
Although the water will eventually evaporate make sure to dry all spots once the test is complete.