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2. Ethylene propylene rubber - Wikipedia

   en.wikipedia.org/wiki/Ethylene_propylene_rubber

   Ethylene propylene rubber (EPR, sometimes called EPM referring to an ASTM standard) is a type of synthetic elastomer that is closely related to EPDM rubber. Since introduction in the 1960s, annual production has increased to 870,000 metric tons .

3. Roller shutter - Wikipedia

   en.wikipedia.org/wiki/Roller_shutter

   A roller shutter, security shutter, coiling door, roller door or sectional overhead door is a specialized type of door or window shutter consisting of multiple horizontal slats, bars, or web systems interconnected through hinges. The mechanism involves lifting the door to open it and lowering it to close.

4. Synthetic rubber - Wikipedia

   en.wikipedia.org/wiki/Synthetic_rubber

   Synthetic rubber, just like natural rubber, has many uses in the automotive industry for tires, door and window profiles, seals such as O-rings and gaskets, hoses, belts, matting, and flooring. They offer a different range of physical and chemical properties which can improve the reliability of a given product or application.

5. EPDM rubber - Wikipedia

   en.wikipedia.org/wiki/EPDM_rubber

   EPDM rubber (ethylene propylene diene monomer rubber) [1] [2] [3] is a type of synthetic rubber that is used in many applications. EPDM is an M-Class rubber under ASTM standard D-1418; the M class comprises elastomers with a saturated polyethylene chain (the M deriving from the more correct term polymethylene).

6. Nitrile rubber - Wikipedia

   en.wikipedia.org/wiki/Nitrile_rubber

   Nitrile rubber was developed in 1931 at BASF and Bayer, then part of chemical conglomerate IG Farben. The first commercial production began in Germany in 1935. [2] [3] IG Farben plant under construction approximately 10 kilometres (6.2 mi) from Auschwitz, 1942. The Buna-Werke was a slave labor factory located near Auschwitz and financed by IG ...

7. Weatherstripping - Wikipedia

   en.wikipedia.org/wiki/Weatherstripping

   Every exterior door, or door to an uninsulated room such as an attic, must be weatherstripped as required by building codes in various jurisdictions. The materials used in door weatherstripping are thresholds, a piece of material (either a sweep or a J-hook) to match the door to the threshold, and the actual weatherstripping itself. Doors can ...