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Henry 787 is a Single Component, Cold-Applied, Rubberized Asphalt Emulsion 


Henry 787 Elastomeric Fluid-Applied Waterproofing Membrane is a single component, cold-applied, rubberized asphalt emulsion which cures to provide a heavy duty “seamless,” rubber-like membrane for use in waterproofing or damp proofing concrete or masonry surfaces above and below grade.  It is ideally suited to be used as a premium waterproofing or damp proofing coating on concrete block (CMU) foundation walls.

The elastomeric membrane formed is characterized by its high solids content while retaining a relatively high degree of workability. Henry 787 Elastomeric Fluid-Applied Waterproofing membrane may be applied by trowel, brush or spray.


  • Protects against rain, air and vapor intrusion or leakage
  • Excellent adhesion to most construction surfaces such as: concrete, brick, stone, wood or metal
  • Retains flexibility in wide temperature range
  • Cold applied by trowel, brush, or spray; requires no special equipment such as kettles

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