Granite countertops are beloved not only because of how beautiful they are, but also because of how strong, resilient, and durable they are, too.
The perfect kitchen countertop material, they tie together a kitchen design like nothing else can – all while offering the functionality you need in a space as utilitarian as the kitchen is.
Unfortunately, because of their reputation as strong, resilient, and durable materials, people use all kinds of cleaning agents on granite countertops that shouldn’t come anywhere near them. Windex is one of them, due to its ammonia-based cleaning agent, it can destroy your granite countertop.
Can You Use Windex on Granite?
If you’re thinking about using Windex to clean granite countertops it’s important that you think again!
There are a handful of common household cleaners that you should never use on these kinds of countertops, and Windex comes in at the top of that list.
Windex, Lysol, Clorox, and Pledge are just a handful of the cleaning solutions you want to keep as far away from your granite counters as you can.
The thing that makes Windex so dangerous, though, is that it is an ammonia-based cleaning agent capable of absolutely destroying the sealer put on granite countertops to protect them in the first place.
Worst of all, it doesn’t take very long at all for this common household cleaner to start eating through your countertops. Just a handful of times cleaning with this product will totally change the way your countertops look (permanently) – and a handful of times after that and you can start to cause some irreparable damage the actual granite itself.
Windex Dulls the Shine of Granite
It’s natural to want to use Windex and other ammonia-based glass cleaners on granite, especially when you see the shine and shimmer on countertops that are similar to the shine and shimmer of clean glass.
On top of that, Windex is specifically and scientifically designed to eliminate fingerprints and leave behind a “streak free” finish.
Well, the trouble here is that Windex is just as good at removing the “shine” elements in granite countertops sealant the same way that it removes the shine of fingerprints from glass.
The ammonia destroys the oil in fingerprints, but it also destroys the shimmer compounds in granite sealant – dulling your countertops and making them look old, dirty, and dingy (even if they are brand-new).
Windex Strips Granite Sealers
Used over and over again, Windex won’t just dull the luster on your granite countertops – it’ll actually start to eat away and erode the sealant put on granite countertops designed to protect them.
Granite (like every other natural stone material) is incredibly porous until it has been stabilized with a sealing agent.
Different companies use different sealers, but almost all of them have similar chemical compositions – chemical compositions that are particularly vulnerable to the ammonia-based cleaners on the market today like Windex.
After using these cleaners a handful of times you’ll see “fogginess” begin to creep throughout your countertops, dulling the finish and introducing and almost milky cloudiness wherever Windex came in contact with the counters.
After using these cleaners for a month or more (or using them on a regular basis over a years time, maybe) you’ll actually eat away the sealant completely – leaving raw granite exposed to whatever is spilled on your counters.
It doesn’t take much from there to create a lot of staining or a lot of damage that would have been resisted and prevented by the sealant that has been scrubbed away.
Windex Can Cause Irreversible Pitting on Granite
As if it wasn’t bad enough that Windex can dull and degrade the finish on your countertops, you should also know that (when used on exposed granite) this common cleaner can also erode and eat away the actual granite itself!
Lots of people that have used Windex unknowingly are shocked to discover that after a few weeks (or maybe a few months) their granite countertops start to have these little “wormholes” all over the surface.
These wormholes can be attributed to all different kinds of things, but granite professionals will tell you that the number one culprit (and the most common cause of these wormholes) is always Windex or another ammonia-based cleaning agent.
The worst thing about these wormholes is that they are the kind of damage that you won’t be able to reverse, unless you’re willing to fill these wormholes with synthetic agents or reseal the countertops completely and ignore the damage underneath.
At the end of the day, you’ll want to make sure that you are cleaning your granite countertops with nothing more than soap and water.
Anything stronger than that and you can find yourself in a world of trouble with your countertops!