Blue is Best - When it comes to air, water and mold defense — Don’t Compromise! Choose BEP Blue Barrier for maximum protection and peace of mind.


BEP Blue Barrier professional grade air and moisture barrier products provide long-lasting, worry-free building envelope protection. Backed by a limited 10-year product warranty, all BEP products are formulated from a proprietary Modified Silyl Terminated Polyether (STPE) technology combining the best characteristics of silicones and polyurethanes in a single stage applied family of products.

Compatible with a vast range of substrates, BEP Blue Barrier products can be applied on dry or wet surfaces. Blue Barrier creates a permeable, seamless, continuous, energy efficient building protection membrane that meets or exceeds all building air and moisture barrier standards and code requirements.

Technical Information

BEP Blue Barrier

Best for the environment | Best for the contractor!

  • Low VOC
  • Spread, brush, gun, roll or spray
  • Moisture cure technology
  • Mold resistant
  • Isocyanate and solvent free
  • LEED certification contributor