For Repairing Cracked And Split Mortar Joints Between Brick, Masonry, And Stone. Meets Federal Specification TTS-00230C, Type II. Meets ASTM C-920, Type S, Grade NS.
SHEETROCK® Gypsum Panels are the original, most widely used gypsum panels on the market. They are composed of a fire-resistant gypsum core encased in 100% recycled natural-finish face paper and 100% recycled liner paper on the back side.
The face paper is folded around the long edges to reinforce and protect the core, and the ends are square-cut and finished smooth. The long edges of the panels are tapered, allowing joints to be reinforced and finished with CGC or SYNKO Interior Finishing Products.