Block-It Landscape and Masonry Adhesive


Bonstone Block-It™ is a one-component, moisture cure, polyurethane adhesive, specifically formulated to bond landscape stone as well as masonry blocks.


Product Information

  • One Component
  • Set time: 45 minutes, 20 minute open time
  • Cures in 3 hours
  • Indestructible adhesive
  • Easy, ready-to-use formula
  • The stone will fail before the adhesive will
  • Comes in convenient squeeze bottle, no cartridge gun required
  • Can be used in vertical applications
  • Adheres to porous stone
  • Can be used in hot or cold weather applications
  • Use with dry, damp or frozen stone
  • Allows for uniform adhesion layer which helps form a permanent bond between substrates
  • Sizes Available: 32oz bottle


  • Bonding masonry block and natural stone
  • Securing natural and engineered stone retaining walls
  • Bonding walls for outdoor living spaces such as patios, kitchens, firepits, and pergolas

SDS/TDS available upon request at [email protected]

Additional information

Weight 3 lbs
Set Time

50 minutes


32 Ounce, 12 Quart Case