From a chance observation of polyethylene “fluff” at a DuPont™ laboratory in 1955, DuPont™ Tyvek® was born. For over 40 years, DuPont™ Tyvek® has been the world leader in the application of flash spinning technology to the protection of people, property and the environment. DuPont™ Tyvek® has long been known for its remarkable lightweight strength and its ability to function as a barrier to liquids, particles and microbes while allowing gases and vapors to permeate. Now this unique material is being used to protect precious cargo–such as medicine and food.
Described below, are a few of the properties of Tyvek® that make it an ideal material for air cargo covers.
Have you ever tried to tear a Tyvek® envelope? Bet you can’t do it. The unique flash spun sheet structure produced by our proprietary flash spinning process is difficult to tear and puncture, while being 2 to 10 times lighter than typical competitive products.
Tyvek® can hold back water while allowing gases and vapor to permeate through the sheet structure. Hard to believe? Watch the video to the left.
Lower Thermal Conductivity
Tyvek® is composed of high density polyethylene , a low thermal conductivity polymer, and contains no fillers or pigments. The unique web-like sheet structure (see Tyvek® Fiber image above) creates void spaces in the polyethylene web. Air “trapped” in these void spaces, further reduces the thermal conductivity of the sheet.
High Reflectance & Low Emissivity
Have you ever been blinded by sunlight reflecting off newly fallen snow? Well, that’s how reflective the unique surface of Tyvek® is, making it a great material to protect your products from the hazards of solar radiation.
For your most demanding temperature management needs, ask for our low emissivity covers which maximize protection from the damaging effects of solar radiation.