cleaning Counter tops Expert Answers Marble Mold Sealant Caulk Stone Restoration

What is Causing my Kitchen Marble Countertop to Stain?

ANSWER - Marble isn't the safest material to use on a kitchen countertop because it is primarily comprised of calcium carbonate that is chemical sensitive and has a tendency to scratch.  Having a honed surface…

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Ceramic and Porcelain Tile cracks Deflection Expert Answers failures grout installation Movement Joints Repairs Sealant Caulk Waterproofing Wet Areas

How do I repair the Horizontal Grout Joint between the Bathtub and the Tile wall?

ANSWER -  The transition joint between the top of the bathtub flange and the wall tile is not supposed to be filled with a cementitious grout.  It should be filled with a resilient ASTM C920…

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Acid Etching Caulk Ceramic and Porcelain Tile cleaning Expert Answers Maintenance Sealant Caulk sealers Stains

Are there Tile Sealers that are resistant to Urine?

ANSWER - I assume you are saying that you seal your tile with a sealer and that your dog's urine is causing the sealer to be removed. Sealers are meant to minimize the chances of…

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Caulk Ceramic and Porcelain Tile Expert Answers Movement Joints Sealant Caulk

What size and type backer rod can I use for Movement joints?

ANSWER - The closed-cell foam backer rod is suppose to be wider than the movement joint.  You can compress a 1/4" foam backer rod into a 1/8" wide movement joint. The backer rod serves two…

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Ceramic and Porcelain Tile Expert Answers failures grout Leak Movement Joints Repairs Sealant Caulk Showers Waterproofing Wet Areas

Is it alright to use Silicone Sealant to fix a Shower Leak?

Answer: First of all, all of the transition joints in the shower both horizontal and vertical should not have been grouted with a cementitious grout.  They should have been filled with an ASTM C920 resilient sealant…

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Caulk Ceramic and Porcelain Tile Expert Answers Movement Joints Sealant Caulk

Should I use 100% Silicone Caulk Sealant or the Sanded Caulk Sealant?

ANSWER - The tile and stone industry standards require that an ASTM C920 sealant (caulk) is used for movement joints and transition joints between changing planes or materials.  ASTM C920 are normally 100% silicone or…

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Ceramic and Porcelain Tile cracks Expert Answers Exterior failures grout installation Leak Moisture Problems Sealant Caulk stone

How do I stop our Exterior Tile Deck from leaking?

ANSWER - The leaking of deck causing damages in the ceiling below is the symptom of the cause of the problem.  Treating the symptom will not remediate the cause of the problem. If the deck…

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