WPA 3400

Polyurea Spray


WPA 3400 is a two component, 100% solids, rapid curing, spray applied, hybrid polyurea, elastomeric waterproofing membrane. WPA 3400 is comprised of a polyether polyol, amine chain extender and MDI based isocyanate. WPA 3400 rapidly cures to form a high performance seamless, tough, durable, elastomeric waterproofing membrane, with good crack bridging properties. WPA 3400 has excellent adhesion to most suitably primed building substrates and is suitable for above and below ground applications.


  • Class III membrane in accordance AS 4654.1.

  • Rapid reactivity and curing time.

  • Almost immediate return to service.

  • Permanently flexible.

  • Good chemical resistance.

  • 100% solids.

  • Excellent durability and abrasion resistance.

  • Mercury free.


Recommended uses:

  • Podiums.

  • Rooftops.

  • Retaining walls.

  • Planter boxes.

  • Water tanks.