In the restoration the decorative entrance of the Cathedral of Immaculate Conception, M70 is the only mortar with an extended drying time that would allow for carving of the intricate ornamental features. Other mortars are polymer/glue-based and set rapidly, so they certainly wouldn’t allow for carving over several hours.

Two other options for color matching patches are: an opaque Potassium Silicate coating and a custom color mortar (which you can get with a laboratory color match or by tweaking mortar colors on-site).

DNA Contracting shined in matching the mortar patches with the surrounding masonry at New York University’s 30-story Silver Towers.

Back in the late 1980s, a local architect asked me to come to the Wye House Estate on Maryland’s Eastern Shore, outside of Easton, to have a look at some aged and failing grave markers of the Lloyd and Tilghman families.

The contractor did a fantastic job patching the stone from a technical standpoint, but the color of the mortar patches stood out from the surrounding stone.

I remember looking at their name tags. Beach Bags. Arizona. I was thinking, one: Beach Bags is a funny name for a restoration business, and two: I don't believe there are any beaches in Arizona.

Someone had attempted to restore the area by filling in the cracks and using caulk, a product that stretches and contracts as a building moves. It’s also waterproof, which, as I mentioned, is a bad idea.

Cathedral Stone Products help restoration professionals achieve a generational repair that introduces no new problems.