Granite sealer, 40 oz – Granite Guard Protector in the water base formula, in the size that covers a whole house rather than a single counter.
Use our 40 ounce Granite Guard Protector as a granite sealer. It also works as a marble sealer, or for protecting against stains on limestone, travertine, terrazzo, and other natural stones, brick, and terra cotta surfaces.
Granite Guard Protector WB works best on unpolished granite, such as, honed finished and flame finished (textured) granite. Granite Guard Protector SB (solvent base) works best on polished granite (shiny, high gloss finish); Granite Guard Protector SB penetrates deeper into the pores of polished granite than Granite Guard Protector WB.
Product Facts
Granite Guard Protector (Water Based)Â – 40 Ounce Size
Now you can seal your granite like a Pro.
Your finest hotels, professional cleaning companies, builders, general contractors, tile and stone installers, use Granite Guard Protector (WB) routinely, as a granite sealer.
Also, works great on marble, limestone, travertine, terrazzo, other natural stones, brick, and terra cotta.
Granite Guard Protector is quick and easy to use.
Granite Guard Protector is unsurpassed for performance and durability.
Granite Guard Protector is economical to use, 40 ounces seals up to 1000 square feet of granite.
Why granite needs sealing at all
Granite is hard, which is why it resists scratching, and that toughness gives people the wrong idea about the rest of it. Granite is also porous. Cooking oil, wine, coffee and anything pigmented soaks down into the pore structure and becomes a stain rather than a spill, and once it is in there surface cleaning cannot reach it. A granite sealer fills that pore structure so liquids sit on top long enough for you to notice them and wipe them away. The Natural Stone Institute covers the same principle in its consumer stone care guidance.
Worth being precise about what a granite sealer does not do. It does not stop etching, which is acid chemically damaging a polished surface. On granite that is rarely the issue; on marble it is the main one. Sealing is about stains.
Why buy the granite sealer 40 oz size
The 8 and 16 ounce bottles suit a single vanity or one counter run. The 40 ounce bottle is for whole kitchens, granite floors, multiple bathrooms, or anyone who has learned to reseal on a schedule rather than after a stain. The cost per square foot drops noticeably at this size, and a sealed counter is the difference between a spill you wipe and a mark you live with.
The granite sealer 40 oz is the water base version – lower odor and far more pleasant to work with indoors, which is why most homeowners choose it for kitchens and bathrooms.
How to apply the granite sealer 40 oz
The surface must be clean, completely dry and free of any old coating. Clean it first with a pH neutral cleaner such as NeutraSheen for Granite and give it real drying time, because sealing a damp or dirty counter traps the problem underneath.
Apply the granite sealer 40 oz evenly, let it dwell so it can penetrate, then wipe away every trace of excess before it dries. Excess left to dry is the most common mistake and leaves a hazy film. Test an inconspicuous area first and let it cure before heavy use.
Knowing when to re-apply the granite sealer 40 oz
The water test settles it. A few drops left on the counter for a few minutes should sit there. If the stone darkens underneath, it is absorbing and it is due. Most kitchens want the granite sealer 40 oz applied once a year; a busy island may want it sooner.
If something has already stained, sealing over it locks it in. Draw it out first with our Granite Poultice, dry the stone fully, then seal.
Granite sealer 40 oz questions we get asked
Will it change how the stone looks? A penetrating sealer is meant to be invisible and should not alter color or gloss.
Does it work on other stone? Yes – also as a marble sealer, and on limestone and travertine.
Will it stop etch marks? No. Nothing prevents acid etching. Sealing protects against staining.
How much area does 40 oz cover? Coverage depends on how absorbent your stone is, but this size is intended for whole house work rather than a single counter.





Nick Bradford –
the product worked, i thought the price was a little high, but still have plenty left so looks good