In the Lab. In the Field. Innovation.
Cathedral Stone Products is the leading North American manufacturer-distributor of environmentally safe masonry restoration and preservation products. Since 1982, we have supported specifiers and contractors by providing laboratory-tested, environmentally safe products that are proven to stand the test of time – and the elements. Our full product offering includes natural mortars and grouts, as well as sustainable paints, paint strippers, water repellent, biological solution, and cleaners.
MasonRE R-97 Water Repellent can be applied to brick, grout, unpolished marble, limestone, tile, and other masonry surfaces. Dries clear on surface. Creates an easily cleanable surface for dirt, oil, grime, tar, soil, etc. Due to its water-based composition, masonRE R-97 Water Repellent is odorless and leaves a natural finish (no sheen) on the surface. MasonRE R-97 Water Repellent works by penetrating into the substrate. It is not topical. After being absorbed, masonRE R-97 Water Repellent establishes a powerful chemical network within the substrate pores, keeping moisture and oil out. In addition to keeping treated surfaces dry and making it easy to clean, R-97 does not block the pores, permitting essential vapor transmission.
Mineral Coatings for Masonry
Cathedral Stone Products Inc. has developed MASONRE® Mineral Coating, for use on all masonry (mineral surfaces), and over latex and acrylic coatings. Similar coatings have been in use in Europe for over 160 years and are now produced for the first time in North America. MASONRE® Mineral Coating combines the advantages of silicate/mineral and silicone coatings. Unlike latex and acrylic coatings, they form a molecular bond with the masonry substrate. The coatings are 92% vapor permeable.
Built in 1941, the main terminal of Reagan National Airport earned a spot on the National Register of Historic Places in 1997. But, with extensive concrete damage caused by rusted rebar, exterior portions of this once distinguished building had become an eyesore.