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  2. Thermoforming - Wikipedia

    en.wikipedia.org/wiki/Thermoforming

    Sheet thicknesses greater than 3 mm (0.120 inches) are usually delivered to the forming machine by hand or an auto-feed method already cut to final dimensions. Heavy, or thick-gauge, cut sheet thermoforming applications are primarily used as permanent structural components.

  3. Vapor barrier - Wikipedia

    en.wikipedia.org/wiki/Vapor_barrier

    Polyethylene plastic sheet, 4 or 6 thou (0.10 or 0.15 mm), 0.03 US perm (1.7 SI perm). Advanced Polyethylene vapor retarders that pass the ASTM E 1745 standard tests ≤0.3 US perm (17 SI perm). Asphalt-coated kraft paper, often attached to one side of fiberglass batts, 0.40 US perm (22 SI perm). Metallized film

  4. Perm (unit) - Wikipedia

    en.wikipedia.org/wiki/Perm_(unit)

    A variant of the metric perm is used in DIN Standard 53122, where permeance is also expressed in grams per square meter per day, but at a fixed, "standard" vapor-pressure difference of 17.918 mmHg. This unit is thus 17.918 times smaller than a metric perm, corresponding to about 0.084683 of a U.S. perm.

  5. Sheet vinyl flooring - Wikipedia

    en.wikipedia.org/wiki/Sheet_vinyl_flooring

    This sheet is coated in vinyl and plasticizer. The resulting sheet is printed and possibly embossed (the print layer). Then the sheet is coated again with one or more protective wear layers, the topmost of which may be polyurethane, to avoid waxing. [7] Cushioned vinyl sheet was developed in the 1960s. It features closed-cell-foam lower layers ...

  6. Heat flux - Wikipedia

    en.wikipedia.org/wiki/Heat_flux

    Diagram depicting heat flux through a thermal insulation material with thermal conductivity, k, and thickness, x. Heat flux can be directly measured using a single heat flux sensor located on either surface or embedded within the material. Using this method, knowing the values of k and x of the material are not required.

  7. Cancer warning labels on alcohol? It's not that simple.

    www.aol.com/news/cancer-warning-labels-alcohol...

    The country's top doctor wants a new warning added to alcohol that would alert drinkers about links to cancer, but don't expect cigarette-style warning labels any time soon.. U.S. Surgeon General ...

  8. Top US hostage negotiator in Middle East to help find, bring ...

    www.aol.com/top-us-hostage-negotiator-middle...

    The U.S. official in charge of hostage negotiations has been sent to the Middle East to try and secure the release of missing reporter Austin Tice.

  9. Forgan and Kirkby win another World Cup luge doubles medal ...

    www.aol.com/forgan-kirkby-win-another-world...

    OBERHOF, Germany (AP) — Chevonne Forgan and Sophie Kirkby of the U.S. won a bronze medal in a World Cup women's doubles luge race Saturday, their second podium finish in three races this season.

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