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polystone-m-xdtRepeated handling, cleaning and normal wear and tear of plastic component parts on food, beverage, and Polystone M XDTpharmaceutical processing machinery increases the risk of a fragment breaking off and contaminating the product during processing.The need for traceable plastics, especially machined parts for filling, sorting and packaging machinery is critical due to strict FDA regulations regarding foreign materials and contaminants.

Since we introduced our line of Metal Detectable engineering plastics (Polystone M MDT (UHMW-PE) and Sustarin C MDT (Acetal)) more than two years ago, these unique products continue to be an effective solution for plastic parts used in open product zone applications. However moving forward, we quickly realized a demand for X-ray detectable plastic parts for today’s high-speed machinery as processors turn to X-ray inspection equipment, especially for post-package inspection. Working together with one of the world’s largest food processors and a leading manufacturer of X-ray inspection systems, our Polystone M XDT has proven to be detected with a particle size as small as a 3mm cube.

Running at speeds as fast as 250 feet-per-minute, this product can be detected and automatically sorted to a product hold area for further inspection. It works effectively with various types of packaging including metal cans, plastic and composite containers and glass jars.


Image of an X-rayed chicken breast

Do you need Fabrication or Machining for Polystone M XDT?

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At a Glance

Generic Name
Ultra High Molecular Weight Polyethylene

Available In
Sheet, Rod

FDA Compliant

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Technical Information

Stock Products Properties Applications Advantages

Stock Products

Sheet 3/8″ – 4″ 24” x 48″ Gray
Rod .500″ – 6.0″ 96”, 120” Gray

Give us your cut-to-size dimensions. We will precision-cut these plastics to your exact size. Additional sizes and colors available upon request.


Mechanical PropertiesUnitsASTMResults
Tensile Strength @ yield psi D638 8450
Tensile Modulus ksi D638 400
Tensile Elongation @Break % D638 7.9
Flexural Strength psi D790 13780
Flexural Modulus ksi D790 459
Compressive Strength @ 10% deformation psi D695 12650
Compressive Modulus ksi D695 264
Hardness, Rockwell M D785 89
IZOD Impact Strength Notched ft-lb/in D256 -
Thermal PropertiesUnitsASTMResults
Coeffcient of Linear Thermal Expansion (x 10^-5 in./in./°F) - -
Heat Deflection Temp at 264 psi °F
Melting Temperature °F 320
Max Operating Temp. °F 212
Thermal Conductivity BTU-in/ft²-hr-°F
Flammability Rating
Electrical PropertiesUnitsASTMResults
Dielectric Strength. 1/8″ th. V/mil D149
Dielectric Constant @1 MHz
Dissipation Factor@1 MHz D150
Volume Resistivity, 50% RH ohm-cm D257


  • Scrapper blades
  • Mixer components
  • Baffles
  • Filler plates
  • Wear plates
  • Pillow blocks
  • Pocket fillers
  • Volumetric fillers
  • Cups & Sleeves
  • Piston fillers
  • Hopper guides
  • Dividers


  • High visibility of filler
  • Detectable by X-ray or metal detection equipment
  • Plastic chunks as small as 3mm detected*
  • Easily machined

*Using Standard metal detection equipment

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