Buy 12 tubes (or a full case/carton) and receive 5% off. Discount applied at checkout. 

Polyguard Blue Barrier Gap Filler (BB GF) is a structural adhesive and detail sealant used to, (1) fill structural wall substrate voids and cracks, (2) bond dissimilar structural wall substrate materials at seams and joints, (3) seal as a sheet membrane top termination protection, and (4) provide an exposed sheet membrane edge sealant. BB GF is primarily used to prepare structural wall surfaces prior to application of other Polyguard products for above-grade Air Barrier membranes, Air Barrier Window and Door Flashing membranes, and below-grade foundation waterproofing membranes; but also performs a critical role over an installed above-grade sheet air barrier membrane or below-grade sheet waterproofing membrane as a sealant to properly shed water. BB GF was developed utilizing Silyl Terminated Polyether (STPE) Technology and is available in 20 oz. sausage tubes.
 

Please note the pricing is per tube. Case contains 12, 20 oz sausages of BB GF. Add 12 to cart to receive a full case. 

Blue Barrier Liquid Applied Air & Water Barrier

• What is Blue Barrier?
  Blue Barrier is a liquid flashing and gap filler system designed to create a continuous air and water barrier on building envelopes.
• Why did Polywall change the name from Blue Barrier 2200? 
  Polywall was a line of residential products from the same parent company, Polyguard. In 2023, all products under the Polywall brand were absorbed into Polyguard and many product names were changed as part of the rebranding.
• Where is Blue Barrier used?
  It’s applied around windows, doors, penetrations, and seams to prevent water intrusion and air leakage.
• What products are in the Blue Barrier system?
  Key products include Blue Barrier Liquid Flashing, Blue Barrier Gap Filler, and Blue Barrier Joint Filler.
• Is Blue Barrier vapor permeable?
  Some Blue Barrier products are vapor permeable, while others are not. Selection depends on climate zone and building design.