|Don's Home Home & Garden Countertops Caring for Granite Countertops|
Buff and dry counters thoroughly. Although your counters will be clean, most cleaners may leave streaks if not dried immediately.
Sealers - impregnators
Many granites are somewhat porous and some types of grease and food products can be absorbed by the granite.
Quality stone sealers will have a smaller molecular structure than grout specific sealers. The best quality stone sealers will have the latest microbond technology. Microbond based sealers will penetrate into even the most dense stones and bond with the stone to provide the maximum protection.
There are water based and solvent based sealers.
One quart of sealer is enough to seal about 100 square feet of granite countertops.
Re-seal when water stops beading up or soaks in. Usually about 6 mos. to a year.
Spray the sealer on. Avoid wiping it on.
Popular at Amazon.com: granite sealer impregnator S.S (NN) S.S = user review score out of 5, NN - Number of reviews StoneTech BulletProof Sealer $26/pt 4.0(406) StoneTech Impregnator Pro, Heavy Duty Sealer for Natural Stone $35/Qt 4.5 (28) Drytreat Stain-Proof $62/Qt 4.4 (36) Drytreat 110712 Stain-proof Plus $51/16 oz 4.8 (18) Optimized for dense natural stone. Three different custom sealing molecules for 3 levels of penetration and maximum stain repellence. Miracle 511 Impregnator $27/Qt 4.3 (161) This is for all surfaces and it creates a moisture and stain barrier. Use this to seal and reseal granite countertops. Miracle 511 Porous Plus $50/Qt 4.5 (113) This product is formulated for all stone but is good for more porous stone such as limestone, travertine, or even on masonry. Use this on honed surfaces. Tuff Duck Granite, Grout and Marble sealer $35/qt 4.6 (148) Granite Gold GG0036 - Sealer, Preserver & Protectant $17/24 oz 4.3 (183) Black Diamond Nex-Gen Stone Sealer Penetrating Sealer $109 gal. 4.3 (142) MB-4 4.2 (5)Review of Some Common Stone Sealers | TileCleaning.org
We first sealed our stone samples and allowed the sealer to cure on the stone for 7 days. We then boiled the sealed stone samples in water. We then cleaned the samples with a common Ph neutral stone cleaner to test the durability of the sealer. We then applied some common food contaminates to the stone samples and allowed the contaminates to dry on the stone samples overnight. After this we cleaned the contaminates off the stone tiles with a pH neutral tile and stone cleaner and checked to see how well the sealers performed in keeping the contaminates from staining the stones tiles.
Note: Although these samples were listed under their stone sealer page, they seem to be grout test results.
My Tests (Used the same methods as TileCleaning.org above.)
Granite Shield claims to only require one application ... no re-sealing.
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