ePTFE Moisture Barrier
by Stedfast Moisture Barrier Systems |
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STEDAIR® 4000 is a premium ePTFE moisture barrier that meets the requirements of NFPA 1971-2000 edition.
The product, along with all of our other moisture barriers, is assembled in our IBM Certified Clean Room. The Clean Room provides an environment that enables Stedfast to consistently deliver the best possible product to the fire service industry.
Stedair® 4000 is in the process of being triple certified for NFPA 1971 (already certified to this standard), NFPA 1999 EMS and NFPA 1951 USAR. The THL performance on the Stedair 4000 is the most outstanding feature of this moisture barrier.
The Stedair® 4000 consists of a Tri-component moisture barrier constructed using a 3.2 oz/yd2 woven Nomex containing 2% carbon fibers, laminated to a membrane comprised of an expanded PTFE matrix combined to a continuous hydrophilic and oliophoebic polymer layer.
The Stedair® 4000 moisture barrier meets and exceeds all requirements of NFPA 1971-2000 edition and provides excellent total heat loss (THL) and thermal protective performance (TPP).
Performance description
- StedairŪ 4000 shall attain a total heat loss (THL) value averaging no less than 210 w/m2 when tested with a 6 oz Nomex outer shell and the Q9 thermal barrier.
- The moisture barrier shall exhibit passing results after 10 wash / dry cycles at 140°F. The StedairŪ 4000 retains all performance requirements as stated in NFPA 1971-2000 edition.
- The moisture barrier will remain waterproof to a minimum of 1 psi after exposure to -40°F temperature.
- The moisture barrier shell attain a hydrostatic resistance of no less than 150 pounds per square inch.
NFPA 1971-2000 edition requirement : 25 pounds per inch minimum
 
Technical Support
Stedfast Research offers advanced taping support for the garment seams. We ensure the stability of the gear for all Stedfast moisture barriers.
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