Lokcrete® Membrane Seal (LMS)

LokCrete Membrane Sealing System (LMS Series) is a waterproof expansion joint system with impact absorbing elastomeric concrete that bonds a continuous Elastoprene® membrane seal to the concrete deck. This creates a high-performance monolithic sealing system that prevents water intrusion. The extended movement capability accommodates joint openings that become larger due to long-term shrinkage and creep. By use of our Microwaterseal Technology the rubber seal is sealed to the deck prior to blockouts (pockets) receiving LokCrete Elastomeric Concrete embed material.

product features

  • LokCrete® – hard, elastic, abrasion resistant embed material that flexes with deck loads.
  • NO PRIMERS REQUIRED – bonds directly to concrete.
  • 2-part polyurethane with chemical cross-linking technology eliminates the need for primers.
  • System is integral with the concrete deck.
  • Seal profiles are ADA compliant and can be heat welded or adhesive rubber bonded.
  • Oversized seal design is never in tension and contains tire impact damper.
  • Capable of thermal, seismic, vertical and lateral shear movement.
  • Exceptionally durable under vehicular traffic loads and extreme weather conditions.
  • Resistant to UV, ozone, acid rain, most chemicals and extreme temperatures.
  • FIRE BARRIERS – available with 2-to-3-hour fire protection ratings. 

Building Types

Load Ratings

  • ADA Compliant
  • Auto (low speed)
  • Emergency Vehicle (low speed)