will this seal sandstone

My experience with the StoneTech products is they don't seal anything. Very expensive, tried different products and none worked.

About how many square feet of will this cover? I understand it depends on the tile size and the actual amount of grout.

We have 20x20 tile on about 1200 sq. ft. in our new house. Two applications on ours and two applications on our neighbor's (same size) with about 1/3 left. So 6000 sq. ft. of tile coverage or more on this size of tile. It will depend on tile size with smaller tiles having more grout but it works great and it's fairly easy to apply....I used a roller applicator.

Can this be used on a backsplash with white glass subway tile? Does it have an odor? If so how long does it smell?

1) Yes let it set for 5 minutes they wipe off....2) Hardly any noticeable smell...its water soluble so it really does not have any long lasting odor...

ASIN	B003XJLGJE
Brand	StoneTech
Brand Name	StoneTech
Colour	Clear
Compatible Material	Ceramic, Porcelain
Customer Reviews	4.3 out of 5 stars 231 Reviews
Item Dimensions	22.6 x 21.8 x 11.4 Centimeters
Item Form	Liquid
Item Weight	3.63 kg
Item dimensions L x W x H	22.6 x 21.8 x 11.4 Centimeters
Manufacturer	Laticrete
Material	Water-based polymer
Material Type	Water-based polymer
Style	Compact
Style Name	Compact
Surface Recommendation	Tile
UPC	669009270045
Unit Count	128.00 Fluid Ounces
Water Resistance Level	Waterproof

StoneTech Heavy Duty Grout Sealer, 1-Gallon (3.785L)

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