Marble Guard Protector (Sealer, Solvent Base) 40 oz.

Marble sealer, 40 oz – Marble Guard Protector in the solvent base formula, in the size that covers a whole house rather than a single counter.

Use the 40 ounce Marble Guard Protector to seal marble like a pro. Our marble sealer also works as a granite sealer, or for protecting stains on limestone, travertine, terrazzo, and other natural stones.

Marble Guard Protector SB (solvent base) works best on polished marble (shiny, high gloss finish); Marble Guard Protector SB penetrates deeper into the pores of polished marble than Marble Guard Protector WB. Marble Guard Protector WB works best on unpolished marble, such as, honed finished and tumbled finished (textured) marble.

Product Facts

Now you can get a marble sealant the Pro’s use.

Professional marble cleaning companies, the finest hotels, home builders, tile and stone installers, for their marble care use Marble Guard Protector (SB) routinely, to seal marble.

This powerful marble sealer also works great as a granite sealer, or even for sealing limestone, travertine, terrazzo, other natural stones, brick, and terra cotta.

Marble Guard Protector is quick and easy to use, and as a leading marble sealer, it’s unsurpassed for performance and durability.

Marble Guard Protector is economical to use, 40 ounces seals up to 1000 square feet of marble.

Why marble needs sealing, and what sealing does not do

Marble looks solid but it is porous. Oils, wine, coffee, cooking splatter and anything pigmented soak into the pore structure and become stains that no amount of surface cleaning will lift. A penetrating marble sealer 40 oz fills that pore structure so spills 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.

Be clear about the limit, because it is the source of most disappointment: a marble sealer 40 oz does not stop etching. Etching is acid chemically damaging the polished surface, and nothing prevents it on calcium carbonate. Sealing is about stains. Etch marks are repaired by polishing – see Marble Gloss Restorer.

Solvent base or water base: which to buy

Solvent carriers penetrate dense, tight stone more readily than water carriers do, which makes this the version to choose for low absorbency marble and for exterior or high traffic work. The trade off is odor: work with the windows open and give the room air. If you are sealing a small bathroom and would rather not deal with that, our water base version does the same job with far less smell.

Which size do you need?

The marble sealer 40 oz bottle is the value size. It is what you want for a whole kitchen, a marble floor, several bathrooms, or anyone who has learned to re-seal on a schedule rather than after a stain appears. The cost per square foot drops noticeably at this size, and running out halfway across a floor is the main thing worth avoiding. For a single vanity, the 8 or 16 ounce bottles are the sensible buy.

How to apply a marble sealer 40 oz

The surface must be clean, completely dry and free of any old coating. Clean it first with NeutraSheen for Marble and give it real drying time, because sealing a damp or dirty surface traps the problem underneath and the only remedy is to start again.

Apply evenly, let it dwell so it can penetrate, then wipe away every trace of excess before it dries. Excess left to dry on the surface is the single most common mistake and leaves a hazy film. Test an inconspicuous area first, and let the sealer cure before putting the surface back into heavy use.

Knowing when to re-seal

The water test settles it. Put a few drops on the surface and leave them a few minutes. If the stone darkens underneath, it is absorbing and it is due. Most kitchens want a marble sealer 40 oz applied once a year; a busy island or the area beside a cooktop may want it sooner, and guest bathrooms often go years.

If something has already stained, sealing over it locks it in. Draw the stain out first, let the stone dry fully, then seal.

Marble 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 – it also works as a granite sealer and on limestone and travertine.

Will it stop etch marks? No. Nothing prevents acid etching on marble. Sealing protects against staining.

Can I still use my normal cleaner? Use a pH neutral one. Acidic and bleach based cleaners strip sealer and shorten its life considerably.