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Tyvek's properties—such as being difficult to tear but easily cut, and waterproof against liquids while allowing water vapor to penetrate—have led to it being used in a variety of applications. Tyvek is often used as housewrap, a synthetic material used to protect buildings during construction, or as personal protective equipment (PPE). [1]
Typical MVTR ~200 grams/100 square-inches/24hours (or greater, i.e., Tyvek is ~400) Typical 2 ounces/square-yard (varies greatly with manufacturer)
Kevlar (para-aramid) [2] is a strong, heat-resistant synthetic fiber, related to other aramids such as Nomex and Technora.Developed by Stephanie Kwolek at DuPont in 1965, [3] [2] [4] the high-strength material was first used commercially in the early 1970s as a replacement for steel in racing tires.
Air barriers control air leakage into and out of the building envelope.Air barrier products may take several forms: Mechanically-attached membranes, also known as housewraps, usually a polyethylene-fiber or spun-bonded polyolefin, such as Tyvek is a generally accepted moisture barrier and an air barrier (ASTM E2178).
A data sheet is not a technical specification in the sense of informing how to produce. An "in-service" or "maintained as" specification, specifies the conditions of a system or object after years of operation, including the effects of wear and maintenance (configuration changes). Specifications are a type of technical standard that may be ...
Data from the U.S. Environmental Protection Agency (EPA)'s Toxic Release Inventory database included in the Political Economy Research Institute studies likewise show a reduction in DuPont's emissions from 12.4 million pounds of air releases and 22.4 million pounds of toxic incinerator transfers in 2006 [89] to 10.94 million pounds and 22.0 ...
An example SDS, including guidance for handling a hazardous substance and information on its composition and properties. A safety data sheet (SDS), [1] material safety data sheet (MSDS), or product safety data sheet (PSDS) is a document that lists information relating to occupational safety and health for the use of various substances and products.
The clew (lower rear corner) of the gennaker sail of an AC45 class racing catamaran, made of Cuben Fiber with nylon strips. Dyneema Composite Fabric (DCF), also known as Cuben Fiber (CTF3), is a high-performance non-woven composite material used in high-strength, low-weight applications.