NASA NTRS · 19910000159
Protecting Helmets And Visors From Chemicals
Abstract
Thin layer of polysulfone on polycarbonate safety helmets and visors protects them from attack by chemicals. Useful in industrial safety helmets. Highly resistant to creep under tension load. Retains dimensional stability when exposed to moisture. Does not adversely affect optical properties of polycarbonate visors. Configuration varied to accommodate such special requirements as high impact strength or protection against moving particles and debris.
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Kosmo, Joseph J., Dawn, Frederic. 1991-04-01. Protecting Helmets And Visors From Chemicals. https://ntrs.nasa.gov/citations/19910000159
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