Tag Archives: cast polyurethane

Guide to Machining Cast Polyurethane Elastomers Part 1: Sawing, Turning, Facing, and Boring

Machining metal and plastics are similar some aspects, but each have unique properties where it differs. In Part 1 of our guide to machining cast polyurethane elastomers, we look at 4 machining techniques: sawing, turning, facing, and boring: Sawing: We’ll most often use a band saw for cutting urethane because the long blades run cooler, and...
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Homerun for Harkness!

  We wanted to share an interesting, successful project we worked on recently with our client, ProBatter Sports. ProBatter Sports has been designing and supplying state-of-the-art pitching systems since 1999. Mike Suba, VP of Engineering came to Harkness with two goals in mind: 1) Improving the performance of the urethane in ProBatter’s current pitching system and 2)...
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The difference between cast urethane and injection molding

    At Harkness Industries, we offer both injection molding and cast urethane. Understanding the difference between these two types of products can make a big difference in your bottom line.         Injection Molding Injection molding starts with the creation of what is called a hard tool. Think of this like a mold, a hard mold. The...
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What is Cast Polyurethane?

Cast polyurethanes are a versatile and diverse materials that have chemical resistance, ease of processing, relative low cost, abrasion resistance and chemical resistivity. Cast urethanes are inexpensive and can be made from a variety of products in a variety of industries. Cast polyurethanes are elastomers and are created by the reaction of a prepolymer which contains...
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