Plastic Stock Shapes

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  1. DuPont Delrin® AF Blend, not for food grade applications

    Homopolymer Acetal (or DuPont Delrin®) is one of the more versatile and popular plastics for job shops to machine. Acetal has great physical properties, is easy on tooling and both DuPont Homopolymer Delrin® and Copolymer Acetal can be found in stock at any reputable plastics distributor. DuPont Delrin® AF is an enhanced version of Acetal that can help DuPont Delrin®...
  2. Why can't I get that color in plastic?

    One of the cool things about plastics over traditional materials is the variety of colors it can be made in. Everyone can relate to something that was made out of a plastic in some sort of cool color that made their product standout. In the graphics or decorative world of plastics, colors are somewhat easy to come by and are...
  3. That's not something we stock...

    It's been a busy week, you've been working hard all week to get a new target account to give you a chance to quote their next opportunity. Today you finally get the call, they send you prints and its time to really impress them with your knowledge, quick turn around and lead time. You gather all your information and then call your plastic supplier to...
  4. What are the ingredients in plastics?

    Plastic materials offer a wide variety of properties and design flexibility that have made them the material of choice for making many different products. From injection molded toys to machined bearings or bushings, plastics are allowing for creative ideas to become realities in a more affordable way to solve difficult problems. There are times when a plastic material by itself...
  5. Beware… Plastics Aren’t Always What They Seem To Be

    Here's a real life experience we would like to share with everyone: Plastics International has had a long history of stocking 30% GF Ultem for one of our OEM customers. Their Machine Shop vendors were directed to order the material from Plastics International to ensure the material would be consistent for quality, responsibility and traceability for the life of the...
  6. Finding the Sweet Spot in Plastic Cutting Tools

    FINDING THE SWEET SPOT There are a number of factors to consider when setting up to machine plastics.  Most importantly, plastic has a higher thermal expansion rate than most other materials, such as metal or wood products.  Thermal expansion is the tendency of the material to change volume in response to the heat introduced during the formation of chips created...