ChimneyRx® Masonry Crack and Joint Sealant is a brushable elastomeric sealant used to repair exterior cracks in mortar joints on chimneys, brick walls and between concrete masonry units. The product seals larger cracks and other defects that cannot be corrected with water repellents alone.
ChimneyRx® Masonry Crack and Joint Sealant seals cracks up to 1/8” wide on brick faces and at mortar and brick joint interfaces to provide waterproof protection to minimize brick mortar repair. It dries clear to milky white depending on the size of the crack. It prevents water infiltration and subsequent damage, yet allows water vapors to escape.
Avoid The High Cost of Tuck Pointing
When applied to a properly prepared wall or chimney surface, ChimneyRx® Crack & Joint Sealant can solve tough leak problems without the expense of tuck pointing or surface grouting. It will not significantly change the appearance of most walls, chimneys or masonry surfaces. A slight gloss will occur on dense surfaces which will lessen over time.
Use ChimneyRx® Masonry Crack and Joint Sealant along with ChimneyRx® Masonry Chimney Water Repellent to provide maximum protection. A one pint container will treat the mortar joints surrounding approximately 110 standard bricks, or approximately 25 square feet of wall surface.
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