Polywin offers blocked prepolymers that are used in 2K systems for elastomer and binder.

Blocked prepolymers deliver enhanced performance, they are resilient to side effects caused by atmospheric moisture and traces of water in solvents and other ingredients. Due to blocking technology they can be formulated with non-traditional raw materials, such as new curative types, enabling properties that are not possible with conventional blocked prepolymers. In their blocked state, no exposure to free isocyanates occurs.

Polywin is at the forefront of blocked prepolymer technology and our products, designed as solvent-borne and 100% solids, meet the requirements of high performance elastomer and binder formulations across a wide range of application areas.

Polywin designed several kinds of blocked prepolymer, CAP95/CAP70D, which is TDI-based blocked prepolymer, those caused to high performance elastomer with MDA curative. Also polywin is developping MDI based urethane system.

If you have more detailed requirements, please let us know.