Category Archives: Urethane

Custom Project? Go Urethane!

Ready to get started on you next project? Urethane is an amazing choice for your next custom mold project.

What exactly makes Urethane such a great choice? It's physical properties allow it to be the ultimate "tough guy" when it comes to molding materials. Urethane possesses:

  • Outstanding Abrasion Resistance
  • Excellent Cut...
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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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Feature: Standard Urethane Shapes

This month our feature is on cast urethane shapes.

These come in sheets, tubes, rods and bars. Our shapes are extremely tough, durable and of the best quality, and last 10 to 20 times longer than other plastic or rubber shapes on the market. For instance, in some of the harshest conditions, urethane outlasts hardened steel five-to-one every time.

We start with only the best raw urethane materials to create stock shapes. Our ISO 9001:2008 certification ensures your parts and products are quality controlled, manufactured to high tolerances.

Harkness offers “as-is” stock shapes or we can fabricate shapes into any array of configurations with machining, grinding, turning, water jet cutting and other industry techniques. Not to mention, these urethane shapes can also be bonded to certain metals, fabrics, plastics and other urethane parts if necessary.

We have many shapes in stock available in a variety of sizes in both natural and black colors, we can also create custom shapes in various colors upon special request.

New Gaskets for Old Equipment

Finding parts for old equipment can be difficult or even impossible depending upon the age. So when a machine is still capable of years of performance yet a gasket goes that can't be found the answer is to get a new one custom made to continues the life of the equipment. At Harkness Industries,...
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Prototype? Cast Urethane is Ideal

Injection molding is great for high volumes, but when it comes to small runs, what you really need is a cast urethane process. That's what makes it ideal for prototypes. Cast urethane processes are fast and cost-effective so whether it's the medical equipment industry or robotics, a durable plastic component can be made quickly at a...
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Altering Cast Polyurethane

  While casting provides the products you need, sometimes secondary machining activities are required in order to get the polyurethane elements into just the right place and in the right working order. Hard urethanes (90 Shore A and up) are fairly easy to machine.   The key is to rely on a plastics expert who understands the machinability...
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Molding – Understanding the Difference Between Injection and Cast

Your project is unique to your needs and determining which process to use comes down to a few key differences in the production processes between urethane cast molding and injection molding. First, let's consider the similarities: Both processes allow for a multitude of colors, soft or rigid durometeres and the ability to "wrap" or cast around...
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Polyurethane = Ultimate Versatility

One of the properties of polyurethane that makes it so incredibly popular and versatile is the range of hardness it exhibits. Whether hard as rock or eraser soft, this material can be formed and molded into nearly limitless shapes while delivering the right amount of hardness for the application. While rubber can be...
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Rubber Versus Polyurethane

Which material is better? As with most material selection questions, the answer is "it depends". Both materials have their place but which material is actually superior? In the case of tires, seals, and some belts, rubber is the best material. In the case of bushings, spacers, and high load components, polyurethane is the better choice. Read more

Exciting Changes at Harkness

There are a number of exciting changes at Harkness we're pleased to share: Introducing two new member to our team; Gregg Hamel and Taegan Williams. Our new Senior Manufacturing Engineer, Gregg Hamel, joined us at the end of March to support custom urethane manufacturing and product development. With a Bachelor of Science degree in Chemical Engineering, Gregg...
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