What is flagstone?

by Mark

You recommend using Siloxane PD for sealing your flagstone but when I look at the Prosoco site, they say DO NOT USE Siloxane on limestone but is OK on sandstone. So my question is "IS FLAGSTONE A LIMESTONE OR SANDSTONE?" Thank you.

Comments for What is flagstone?

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by: David

Hi Mark,

Flagstone is a sandstone and my dad has used their products for years and has had great luck.

You might want to call them at: 1-800-255-4255.

Great luck!

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