Whether you’re color-matching on-site or sending us a sample for our lab custom color match, always clean the masonry you intend to use for your color match.

demonstrates a fast and easy approach to matching the repair with the substrate

The perfect refresher for Certified Jahn Installers.

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

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

Learn how to change/tweak mortar colors on the job site.

Video demonstration.

Cathedral Stone Products continues to innovate and improve on our best-in-class Jahn Restoration Mortars.