Engineered for Safety, Performance, and Durability Stedair® 4000 delivers outstanding THL & TPP results.

Exceptional breathability and unmatched durability without compromising comfort.

Stedair® 4000: A premium moisture barrier that provides outstanding protection for the fire service industry, Stedair® 4000 combines a woven 3.2 oz/yd2 meta-aramid pajama check substrate with an enhanced bi-component membrane. This bi-component membrane is comprised of an expanded PTFE (Teflon) matrix that has continuous hydrophilic (water-loving) and oleophobic (oil-hating) polymer coatings impregnated into the fabric.  

Stedair® 4000 Product Benefits:

  • Exhibits passing results after ten wash/dry cycles at 140° F
  • Remains waterproof to a minimum of 1 PSI after exposure to -4°F
  • Attains a hydrostatic resistance of no less than 150 pounds per square inch
  • The best combined THL and TPP in the industry

Stedair® 4000 Chemical Protection:

Stedair® 4000 provides superior protection against bloodborne pathogens, toxic industrial chemicals (TICs), toxic industrial matter (TIMs), and other harmful chemicals:

  • Blood-borne pathogens
  • Battery Acid
  • Hydraulic Fluid
  • Gasoline-Fuel C
  • Aqueous Film Forming Foam (AFFF)
  • Chlorinated Water

Brochures available in:
Stedair® 4000 Spanish
Stedair® 4000 Portuguese

Warranty Information

Stedfast is committed to the North American Fire Service, being the first in the industry to back its moisture barriers with warranties.

Stedair® 4000 - Stedfast is pleased to offer a five-year warranty on Stedair® 4000. This moisture barrier comprises a 3.2 oz woven meta-aramid pajama check laminated to an enhanced bi-component membrane. This membrane will comprise an expanded PTFE  matrix with a highly engineered polymer coating, translating into outstanding durability. Stedair® 4000 consistently delivers industry-leading TPP (thermal protection) and a very high THL (total heat loss.) Stedfast is making a serious commitment to the North American Fire Service.

For complete warranty details, Stedair® 4000 warranty