What is Polyurethane (PU) Wire
Polyurethane, commonly abbreviated PU, is any polymer consisting of a chain of organic units joined by urethane links.
Polyurethane polymers are formed by reacting a monomer containing at least two isocyanate functional groups with another monomer containing at least two alcohol groups in the presence of a catalyst.
Polyurethane formulations cover an extremely wide range of stiffness, hardness, and densities. These materials include:
1.low density flexible foam used in upholstery and bedding,
2.low density rigid foam used for thermal insulation and e.g. automobile […]