What is polyurethane foam and what is it used for?

Polyurethane foam is a polymer material, and PU is polyurethane, polyurethane is an emerging organic polymer material, known as the "fifth plastic", because of its excellent performance and is widely used in many areas of the national economy.
Polyurethane is the abbreviation of polyurethane, the English name is polyurethane, PU for short.
PU foam is divided into PU foam, anti-static foam, conductive foam, EPE, anti-static EPE, PORON, CR, EVA, bridge PE, SBR, EPDM, etc. PU is polyurethane, and PU skin is the epidermis of polyurethane composition. Widely used in electronic equipment manufacturers, the new energy industry, and the railroad market

Non-toxic and non-hazardous
Wide range of hardness (Shore A15 ~ Shore D90) in the same hardness, then other elastomers high wear resistance, impact resistance high rebound range for high-frequency flexing applications low-temperature flexibility using a special formula, stable moisture vapor transfer at 140 ℃ - suitable for microporous materials not affected by ozone erosion radiation resistance can be made into flame retardant materials high resistance to mold and mildew Low friction can be processed on standard equipment can be bonded to wood, metal, and most plastics can be made into noise-reducing materials low molding and processing costs widely resistant to oils, greases, and chemicals
Rigid polyurethane foam materials are tough and have excellent resistance to compression deformation, ensuring long-term stability in gap-filling, gasketing, and sealing applications.
Urethane foam can provide rigid support for design gaps and ensure the physical location of related devices, providing designers with a convenient and flexible structural aid. It also provides protection against pressure damage during the transport of sensitive and fragile devices.
Rigid polyurethane foam materials maintain integrity and effectiveness even after prolonged exposure to changing temperatures. Ideal for use in extreme environments that may have to be dealt with. This includes heat, vibration, dust, dirt, and shock in a variety of applications.