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Bonding Coat is specifically formulated for bonding Portland cement mixes to interior or exterior concrete or masonry surfaces and gypsum mixes to interior concrete, masonry, or plaster surfaces. Use Weld-O-Bond™ to bond Silpro Concrete Finish™, California Stucco™, Easy Patch™ or VO Patch® to concrete or masonry walls.

Performance Characteristics:

  • Bonds new concrete and plaster to compatible surfaces
  • Bonds to old or new concrete, brick, stone, tile, drywall, wood, marble, concrete block, or rigid polystyrene foam insulation
  • May be applied over damp or dry surfaces, as well as “green” concrete
  • Increases working time of mortars by reducing water absorption on porous surfaces
  • Not affected by weather once covered