Is Our Granite Sealed or Not?
(Canoga Park, CA)
We just got the granite countertops installed in both our kitchen and all the bathrooms. The color is on the light side, beige/cream color.
We place anything wet on it and the counter top will show the water stain.
I asked the contractor if it has been sealed and he said, "of course. It wouldn't be shiny if it wasn't."
I told him what I've been reading online including the paper towel test. He says that it's normal for granite to get wet and show the stain. As long as it dries up quickly, it's fine. All granite is like that.
Is my contractor telling me the truth? Or is he just trying to get away with not having to seal it properly?
Your contractor is not
telling you the truth, but he may not know the truth. "It wouldn't be shiny if it wasn't sealed."
Total BS... the shine has nothing to do with sealing. The shine is produced at the factory with high-friction industrial machines.
He says that it's "normal for granite to get wet and show the stain. As long as it dries up quickly, it's fine. All granite is like that."
Yeah... many granites (not all) are porous and will absorb water and show the stain, but that is precisely why you need to seal it. Water will dry up and won't leave a stain, but coffee, wine, oil or anything else that has a chance to absorb will stain. If it were sealed properly
, the water would not absorb at all.... well, not rapidly anyway. It would just bead up or form a puddle without any color change like a stain.
However, if a liquid is left on most granite for 30 minutes or more it could potentially
abosrb (even when sealed) depending on the original porosity of the granite.
This is because granite and marble sealers greatly reduce or limit absorption, so it takes a lot longer... but they do not absolutely prevent it.
Usually water (and most liquids except oil) evaporate before absorbing into a well-sealed countertop.
The fact that the water is "staining" (if under 10 minutes) is the exact indicator that no granite sealer has been applied (or applied very poorly) and the countertop needs sealing.
If sealing is supposed to be included in the job, then I'd ask him what the charge for sealing is and deduct that from the total for final payment.
Tell him you'll seal it yourself. It isn't hard to do correctly.
If you choose to do this, I'd suggest using these recommended marble & granite sealers