ChimneyRx Chimney Products

ChimneyRx Masonry Crack and Joint Sealant

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Product Datasheets

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 thatminimizes brick mortar repair. It dries from clear to milky white, depending on the size of the crack. It prevents water infiltration and subsequent damage yet still 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 that will lessen over time.

Note: Material left on the brick's surface can whiten over time, creating an unsightly appearance.

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.

  • Details
  • Technical Info
Size Approx. Weight Product Code UPC #
1 pint 2 lbs 30400 709057700160
1/2 gal 6 lbs 30019 709057700641

  • Coverage Rate : 1/2 gallon container will treat the mortor joints surrounding approx. 550 standard bricks, or 100 sq. ft. of wall surface
  • Available Sizes: 1 pint or 1/2 gallon recycleable containers
  • Application Temperatures: Between 40-100 ° F
  • Application Method: Brush
  • Dry Time: 2 hours
  • Cleanup: Soap and water

Chimney Rx products are available nationwide at participating Do it Best stores. Find a Do It Best Near You

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