CSP representatives recently spoke on the evolution of mortar for a group of stonecutting interns at Eastern State Penitentiary Historic Site in Philadelphia, which was in operation from 1829 until 1971. The prison was abandoned for 20 years and is now a major preservation project.

I called around and soon learned that the laborers had gone on strike. Well, it was no wonder that the cathedral was a ghost town. Without laborers, you can’t get anything done. You can’t mix cement. You can’t make mortar for setting stone. You can’t build a cathedral. Nothing gets done without labor.

This grout is engineered to secure helical ties and anchors in masonry.

Cathedral Stone Products is now solely in a position to manufacture and distribute the complete line of Jahn Masonry Restoration products worldwide.

The conference was held at the Newport Art Museum which, with its original stick-style Victorian structure and complementary expansions, was the perfect backdrop for a bunch of restoration professionals to gather.

Video demonstration.

The product has successfully removed biological, carbon, and rust staining on other difficult-to-clean projects where our standard cleaners and removers were not as effective.

We were contacted by Michael Higgs, the Cave Hill Cemetery Foundation Manager, who wanted to learn more about our products and best practices for preservation of historic monuments, mausoleums, and gravestones.