PU Binder, or polyurethane binder, is a type of adhesive used to bond materials together, typically in construction, automotive, or manufacturing applications. It’s known for its strong, durable, and flexible properties, which make it suitable for use in a variety of environments and conditions. PU Binder is often used in the production of composite materials, coatings, and as a general-purpose adhesive for both rigid and flexible substrates.