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Cork is a lightweight, reusable, and biodegradable material that is harvested every 9–12 years from the bark of the cork oak (Quercus Suber L.). It has a homogeneous cell structure with thin, regularly arranged cell walls without intercellular spaces. North Africa, as well as parts of Portugal, Spain, and Italy, are home to the cork oak.
Harvesting of cork from the forests of Algeria, 1930. Cork is a natural material used by humans for over 5,000 years. It is a material whose applications have been known since antiquity, especially in floating devices and as stopper for beverages, mainly wine, whose market, from the early twentieth century, had a massive expansion, particularly due to the development of several cork-based ...
Underlay or underlayment [1] generally refers to a layer of cushioning made of materials such as sponge rubber, foam, felt, crumb rubber, or recycled plastic; this material is laid beneath carpeting to provide comfort underfoot, to reduce wear on the carpet, and to provide insulation against sound, moisture, and heat. [2]
Underlayment may refer to: Underlay, a material placed underneath floor carpet, other flooring materials, or mattress bedding; Underlayment, a water-resistant or waterproof layer used beneath many types of commercially available roofing material. Bituminous waterproofing, systems designed to protect residential and commercial buildings
Quercus suber, commonly called the cork oak, is a medium-sized, evergreen oak tree in the section Quercus sect. Cerris.It is the primary source of cork for wine bottle stoppers and other uses, such as cork flooring and as the cores of cricket balls.
Armstrong Cork Company eventually moved its headquarters to Lancaster, Pennsylvania. The company's product lines evolved from cork products and Linoleum, to vinyl floors, acoustical ceiling products, and glassware in each of which industries it was at one time a leading producer and brand.