Introducing AIRLOK FLEX® NP-40

In keeping with our “Innovation Based” philosophy, Polyguard has released another member in the Airlok® family. When your project calls for a low VOC, high build product; Airlok Flex® NP-40 is your answer.

This water-based cold fluid applied, single component, the elastomeric coating is designed to prevent air and moisture penetration. Airlok Flex® NP-40 is suitable for use with common substrates such as exterior grade gypsum, poured concrete, CMU and OSB. Easy to spray with commonly available equipment or roll. Full compliment of detailing and flashing products available in flashing tape and fluid applied formats.



  • Non-Permeable (0.7 perms)
  • Water-Based
  • VOC Content: Less than 20 (g/l)
  • Application temperature range of 40 to 120 degrees F
  • 12 Month UV resistance
  • 70 wet / 40 dry mils (23 sf /gal theoretical coverage rate)
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