For the first time, Gore-Tex Airlock technology was combined with the flameproof PBI Gold outer shell to supply Vienna Airport Fire Brigade with protective clothing for their requirements (see article in this issue). The core is Gore-Tex Airlock, a product of W.L.Gore & Associates with a unique combination of heat protection and moisture resistance. The microporous ePTFE membrane on a substrate is fitted with thermostable and chemically resistant spacers made of foamed silicone.
These create an insulating air cushion for the Nomex inner lining. This reduces the danger of heat stress and improves the wear comfort. PBI Gold, a product of Celanese Advanced Materials Inc., was chosen as material for the outer shell. PBI is non-inflammable, abrasion resistant and resistant to acids, alkaline solutions, fuels, and solvents. Above all, however, PBI Gold continues to be flame resistant, so that there is no need to exchange it after it has been directly subjected to the flames.
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