Polyurethane

Polyurethane is an extremely diverse family of materials. Polyurethane can be formulated to replicate any type of hardness from Glass to gel and can be engineered to replicate thermo plastics such as rubber and ABS. Polyurethane can also be engineered for specific application parameters both in processing and use. These include Polyurethane elastomers, clear polyurethanes, foamed polyurethane, one part polyurethane, UL / Flame retardant polyurethane, high viscosity, low viscosity and thixotropic polyurethane.

The main polyurethane producing reaction is between a diisocyanate (aromatic and aliphatic types are available) and a polyol typically a polyethylene glycol or polyester polyol in the presence of catalysts and materials for controlling the cell structure, (surfactants) in the case of foams. Polyurethane can be made in a variety of densities and hardnesses by varying the type of monomer(s) used and adding other substances to modify their characteristics, notably density, or enhance their performance. Other additives can be used to improve the fire performance, stability in difficult chemical environments and other properties of the polyurethane products.

Greenfield Polymers is able to tailor make the product to suit an application. This has seen Greenfield Polymers products involved in a wide and varied use in the fields of encapsulation, coating, adhesives, sealants and castings for over 20 years.