will this product work on counters that have been stained for a few years?

I don't know, but it worked on a very large oil stain I had that Nothing else would work on. I would certainly give it a try.

Will this work on granite that has been sealed?

Our granite was sealed and it works well for oil stains. Good luck.

will this product remove a coffee stain?

Hello Josh, this product is mainly designed to remove oily soils, like olive oil spills and like products. Unfortunately this product is not designed to remove coffee stains.

Does it work on quartz or quartzite?

The label lists quartzite as one of the natural stones on which it will work. I don't know if quartz is similar enough to that but probably would work.

Brand	StoneTech
Surface Recommendation	Grout,Stone
Material	Wood Based
Model Name	Oil Stain Removal
Size	Pint
Coating Description	Oil-Based
Item Weight	16 ounces
Finish Type	Same as original surface
Special Feature	No Residue
Liquid Volume	1 Pints
Package Information	Can
Number of Items	1
Manufacturer	Granite City Tool
Unit Count	16.0 Fluid Ounces
Global Trade Identification Number	00669009150026
UPC	669009150026
Part Number	D12446904
Item Weight	1 pounds
Item model number	EX6-16
Is Discontinued By Manufacturer	No
Finish	Same as original surface
Item Package Quantity	1
Coverage	1/2-1 square feet
Special Features	No Residue
Usage	Grout
Batteries Included?	No
Batteries Required?	No

STONETECH Oil Stain Remover, Cleaner for Natural Stone, Grout, & Masonry, 1 Pint/16OZ (473ML) Can

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