Cathedral Stone® Products

Featured Product

masonRE^® Oil & Water Repellent

Conforms to all VOC regulations

masonRE^® Oil & Water Repellent does not affect the appearance or vapor permeability of the substrate, and will not harm glass. Oil & Water Repellent can be applied to porous masonry surfaces. Dries clear on surface. Creates an easily cleanable surface for dirt, grime, tar, soil, etc. Due to its water-based composition, oil & water repellent is odorless.
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Our Products are Environmentally Safe

Safe Seal

Featured Green Product

R97 Water Repellent

Meet all VOC regulations with R-97. Only Cathedral Stone® Products has custom formulated an odorless, worker-friendly water repellent. Apply to any masonry surface in a single coat without changing the appearance of the substrate.
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Featured Case Study

Reagan National Airport

10 Year Materials & Labor Warranty

Extensive concrete damage made this once distinct airport an eyesore. More than 7,000 patches and three years later, the repairs are under a 10-year materials and labor warranty. The patches are indistinguishable from the original concrete because of Cathedral Stone’s Jahn Mortars, Jahn Grouts, and our proprietary tinting system.
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Certified Training at Cathedral Stone

Manage Masonry Restorations With Confidence

Gain the know-how and the confidence to properly execute your next masonry repair job. Attend a hands-on training at our headquarters in Hanover, Maryland. Learn how Cathedral Stone analyzes the physical properties of substrates. Discover how you can assess products and perform the best techniques for repairing and color-matching them to a structure’s original masonry.
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Online Ordering Has Arrived!

Streamline your ordering with Cathedral Stone. Track order history, order status, and request samples. Existing customers can login here. Don't have an account? Sign up.

CSP is a GSA vendor. GSA Contractors can place orders through Advantage for paints, paint strippers, water repellent, and mortars or cleaners.

Jahn Restoration Mortars

All natural, breathable, single component, color-customizable mortars, free of bonding agents. Used for repairing most masonry and stone. Exclusively through Cathedral Stone®

D/2 Biological Solution

Biodegradable, non-abrasive solution removes biological deposits and last 5x longer than bleach, peroxide or powerwashing.

Silin Silith

Mineral coatings formulated for use on all masonry surfaces including existing coatings, 92% vapor permeable, colorfast, retards corrosion, water repellent.

masonRE^® Cleaners

Remove environmental pollutants, dirt, grime and soot without rinsing. Apply once, dry, and peel. Use for most interior and exterior masonry and stone.