Foam typically comes from Polyurethanes, which are used to cover an extremely wide range of stiffness, hardness, and densities. These materials include: Low-density flexible foam used in upholstery and bedding, low-density rigid foam used for thermal insulation and RTM cores, soft solid elastomers used for gel pads and print rollers, low density elastomers used in footwear, hard solid plastics used as electronic instrument bezels and structural parts. Polyurethanes are used to make high resiliency flexible foam seating, rigid foam insulation panels, microcellular foam seals and gaskets, durable elastomeric wheels and tires, automotive suspension bushings, electrical potting compounds, high performance adhesives and sealants, Spandex fibers, seals, gaskets, carpet underlay, and hard plastic parts.
Low density rigid and flexible foam is a material called polyurethane. Low-density foam is typically used in upholstery and bedding,insulation, egg cartons, flats for meat and produce, sandwich and hamburger boxes, coffee cups, plates, peanut packaging, and picnic coolers, and low-density rigid foam is used for thermal insulation and RTM cores. Expanded polyurethane is comprised of the following ingredients: styrene (C8H8 comes from a natural or petroleum gas), that is created by a reaction of ethylene (C2H4) and beneze (C6H6)
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