Creep in Plastic Materials

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What is Creep in Plastic Materials?
Creep in plastic materials is sometimes referred to as cold flow.
Viscosity
The viscosity of a fluid is a measure of its resistance to gradual deformation by shear or tensile stress.  Viscoelastic behavior is the property of a material to display both viscous and elastic characteristics when undergoing deformation.  The difference between plastics and other materials is that plastics display time-dependent viscoelastic behavior.  A material can deform as the result of long-term exposure to high levels of stress that are still beneath the yield strength or yield point of the material. … Read more

Tree with heavy balls hanging from it showing creep

Metal Detectable Plastics in the Food Industry

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You are eating a hot dog or digging into a carton of your favorite ice cream. You don’t even think there could be a piece of plastic or metal or just small particles of these materials in there- broken or worn off from the machinery and tools used to get your favorite foods to your grocers’ shelves. But many of the food processing machines and tools used to provide food products have plastic parts in them or are made of plastics. … Read more

Product recall button

Three Innovative Plastic Designs in Agriculture

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Innovations in the agricultural industry are important for future generations and are enabling
communities all over the world to meet the demand for food. Both in novel and technical ways, plastic designs are helping lead the way in agricultural innovation. Examples include rotomolded beehives, injection molded spray nozzles, and plastic reservoir systems.
Rotomolded Beehive
Bees are integral players in honey production, but they are typically utilized in rural settings rather than urban ones, … Read more

plastics in agriculture

Announcement: Craftech is Now PPAP Levels 1-5 Capable

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Craftech Industries, Inc. is pleased and proud to announce the added capability of quoting and producing parts with customer specified PPAP Level I, II, III, IV, and V paperwork.  It took a team effort at Craftech to implement and respond to the requirements of the Production Part Approval Process as it pertains to the plastic fasteners we produce. We saw a customer need for providing this quality standard and decided to meet it. … Read more

PPAP emblem.

How to Identify a Plastic Material Using the Burn Test

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So you have a plastic part and you need to know what it is made of but you have no idea what plastic it is. This can be a challenging task. Many plastics look and feel alike but we will take a closer look here at some of the ways using a burn test. Please note, this test should be done in an industrial setting and not at home since proper safety protocol must be observed. … Read more

Flame.