Introducing Bio-Cleaner in a new 16 oz spray bottle—perfect for frequent, at-the-ready use.

We’ve updated all CSP Technical Data Sheets!

I lost a true friend on December 19th. Frank Matero meant so much to so many…

This Cathedral Stone System boasts a robust warranty and is built on the strength of our Potassium Silicate, renowned for its durability and exceptional vapor permeability and salt handling characteristics.

We’re asked lots of questions about Terra Cotta Glaze, and we answer them here! For example: How many coats are required? Is it best to brush or roll Terra Cotta Glaze? Does every repair need Terra Cotta Glaze?

The Jepol team recently repaired spalled limestone on the Empire State Building using Jahn M70 Limestone Repair Mortar. Based on their consistent track record, we have no doubt these new patches will endure for generations.