Expert Answers in Caulk

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Should I Install Limestone Coping on my Pool?

Donato Pompo Donato Pompo · Jun 11th, 2024

Always take what the contractor says with a grain of salt and make sure there is documents backing it up.  Don’t assume they are doing things correctly and read the directions that they likely don’t…

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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?

Donato Pompo Donato Pompo · Jul 10th, 2020

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?

Donato Pompo Donato Pompo · May 21st, 2019

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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Caulk Expert Answers installation Movement Joints stone

Is it ok to butt a wood floor tight to a marble tile insert?

Donato Pompo Donato Pompo · Jan 17th, 2019

There should be a 1/8" joint between the wood and marble.  It would be best to caulk that joint as there is likely to be movement.   If you don't have a joint then when the…

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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?

Donato Pompo Donato Pompo · Sep 6th, 2018

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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