TPU stands for Thermoplastic Polyurethane, which is a type of plastic created when a polyaddition reaction occurs between diisocyanate and one or more diols. TPU is a thermoplastic elastomer, which means it has the characteristics of both plastic and rubber. It is a versatile material with many properties, including elasticity, transparency, and resistance to oil, grease, and abrasion. Some key features of TPU include:

• Durability: TPU is a highly durable material that can withstand wear and tear, impacts, and scratches.

• Flexibility: TPU is extremely flexible and can be used for products that need to be flexible and resistant, such as dinner bibs and baby teethers.

• Resistance: TPU is resistant to oils, greases, solvents, and many chemicals.

• Recyclability: TPU is recyclable since it can be molded, extruded, and reused.

TPU has many applications, including automotive instrument panels, caster wheels, power tools, sporting goods, medical devices, drive belts, footwear, inflatable rafts, fire hoses, and a variety of extruded film, sheet, and profile uses. It is also a popular material found in flexible outer cases of devices like mobile phones and keyboard protectors. TPU is widely used in 3D printing as well, as it is a thermoplastic that can be melted by the 3D printers hotend, printed, then cooled back into an elastic solid.