Pecora XL-Perm Ultra NP

Pecora XL-PermULTRA NP is an integral part of the nonpermeable XL-Perm Air, Vapor & Water Barrier System, a four step approach for complete air, vapor and water barrier protection for your building envelope. Pecora XL-PermULTRA NP is a primerless single component, high performance, elastomeric fluid applied STPU (Silyl Terminated Polyurethane) that combines the best of both silicone and urethane performance properties in order to function as an air, vapor and water barrier for exterior wall assemblies. Applied in a single coat, this durable elastomeric weatherproofing membrane provides two to three times the coverage of other fluid applied products. Pecora XL-PermULTRA NP has excellent elasticity and crack bridging capabilities contributing to a seamless durable, airtight building envelope.


  • 5 gallon pails
  • 50 gallon drums

Available Colors

  • Black
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