While the Hands-On and Happy-Hour are clearly the "fun" of the evening, the R&D Lab is always the favorite--especially if you're lucky enough to be here when our stonecutter and founder, Dennis Rude, is leading the tour.

In 1966, the 31-story I.M. Pei-designed residential structure at 505 LaGuardia Place was heralded for its Brutalist contemporary architecture and innovative poured concrete construction. But by the early 21st century, the New York City Landmark needed help.

Detailed steps and process of mixing a custom color stain to finish and match a masonry mortar repair/patch.

John G. Waite Architects brought Cathedral Stone Products in to assist with the preservation of Castle Clinton, a property with a fascinating history as the first US immigration station.

Each kit includes all the colors typically needed for your choice of masonry type.

I’d used a lot of different repair materials, but I’d never experienced anything anywhere near as good as Jahn Mortar.

…but they also do so much more than a lab test in illustrating the initial bond strength and potential full-cure bond strength.

“The Evolution of Mortar” that included a discussion of how our Jahn Substrate Specific/Engineered Mortars were developed. This educational presentation qualifies as one AIA Continuing Education Learning Unit (AIA CE LU).