Will it work for grave stone made of granite? Want to clean and polish it.

it should, if the surface is rough it may soak up quite a bit of the product initially though. I'd bring a couple heavy duty rags to apply it evenly.

Can this me used on an unsealed limestone hearth?

Yes, but this will not really seal your stonework. Also note this cleaner is no more effective than basic soap and water cleaning. If it is new limestone, I recommend getting it professionally sealed first or at least using a basic sealer like Black Diamond Nex-Gen Natural Stone Penetrating Sealer and then using a stonework polish if you want some luster.

Can this be used on floors?

Hi Patricia, It absolutely can be used on floors. I use this on my polished travertine floors all the time.

do you need a separate sealer or will this be able to seal just on its own?

Use the Black Diamond sealer initially and then you can use this product to clean and seal. It is a fabulous product and I use it daily to keep the counter looking good as new (our granite is in our bathroom and between hairspray and cosmetics, dirt can build up fast.). We used the sealer initially four years ago and counter looks good as new today.

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✨ Elevate your stone care game with streak-free shine & built-in protection 🛡️

DUAL ACTION POWER - Cleans and seals simultaneously to protect your stone surfaces daily
VERSATILE STONE CARE - Safe on granite, marble, travertine, limestone, quartz, and more
ULTIMATE SURFACE DEFENSE - Guards against oil, coffee, wine, and even peanut butter stains
EFFORTLESS STREAK FREE SHINE - pH neutral formula ensures a spotless, food-safe clean every time
PROFESSIONAL GRADE EVERYDAY USE - Endorsed by stone care pros and made in the USA for trusted quality

Black Diamond Stoneworks GP QT Plus is a premium 2-in-1 cleaner and sealer designed for granite, marble, travertine, and limestone surfaces. Its pH neutral, no-rinse formula safely cleans while reinforcing stain protection daily. Made in the USA and endorsed by professionals, it keeps your stone surfaces looking flawless and protected from common household stains.

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Product Name	2 in 1 Cleaner & Sealer for Granite, Marble, Travertine, Limestone, Ready to Use
Additives	Hydrogen Peroxide
Weight	4 Pounds
Volume	32 Fluid Ounces
Units	32 Fl Oz
Brand	Black Diamond Stoneworks
Format	Spray

Black Diamond StoneworksGP QT Plus 2 in 1 Cleaner & Sealer for Granite, Marble, Travertine, Limestone, Ready to Use, 1-Quart (32oz)

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