Insert molding is possible with either cast or injected molded polyurethane processes. We can mold to inserts such as bearings, wheel and roller hubs, threaded fasteners, metal plates, and shafts. The insert can be made from aluminum, steel, stainless steel or plastic.
A great advantage to both TPU and urethane castings is their ability to bond to other materials such as metal. In both insert molding processes, metals are carefully prepped and coated with a chemical primer. The primer reacts with the base metal to form a strong chemical bond. The primer will also react when it comes in contact with the hot urethane of cast polyurethane or polyurethane injection molding. The end result is a urethane bond between the primer and the base metal which is incredibly strong.
The primer reacts with the base metal to form a strong chemical bond. The primer will also react when it comes in contact with the hot urethane. The end result is a urethane bond between the primer and the insert molding base metal which is incredibly strong.
Polyurethane bond integrity is vital for components such as wheels and rollers. A bonded elastomer is able to withstand higher loading than an un-bonded elastomer.
Insert molding and bonding to a metal plate also simplifies design details such as mounting and part orientation.
The decision between polyurethane casting and polyurethane injection molding should be made carefully by taking the entire scope of the project into account. There are many advantages to each molding technique.
The experts at Gallagher Corporation have decades of experience with each process and would be delighted to speak with you at length about the specifics of your individual project.
Bring us even the trickiest requirements of your most important components, and time after time, we turn them into success at our 100,000-square-foot, ISO-certified facility in Gurnee, Ill. Meanwhile, as your demands keep getting tougher, we’re always reinvesting in our business, constantly enhancing our expertise and continuously improving our operations with new machinery, new processes, and new materials to meet your evolving needs.
It’s all part of a culture of commitment to your needs that you’ll find only when you partner with Gallagher as your chosen polyurethane manufacturer . . . where you can be confident that you’ll always have your toughest demands – delivered.