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With 5% boron by weight and our trademark purple color, Plasti-Shield® 5% Borated Polyethylene is manufactured to meet all applicable applications for industrial use, medical applications (with regards to cancer treatment) and is effective shielding for support in all areas of security such as seaports, airports, border protection and other applications requiring attenuation of thermal neutrons.Plasti-Shield® is certified by prime vendors of the U.S. government as the source for Grade II and Grade III neutron shielding material on nuclear submarines and naval warships. Our process, materials, quality programs, sampling, testing, tracing and packaging all meet or exceed military specifications such as MIL-P-23536A and EB2562E. We use MIL-STD-45662 for internal calibration system traceable back to NIST.*

Makes material that meets MIL-P-23536A and EB2562E and have quality procedures that meet all requirements of both.*

  • We only use approved suppliers for all Raw Materials.
  • We have an approved sampling plan in accordance with MIL-STD-105 with AQL of 0.4%.
  • Test for Hydrogen Density to verify correct level.
  • Use a Fluoroscopic X-Ray machine to check for voids and foreign materials.
  • Capable of performing all packaging and shipping requirements.
  • Audited by the Navy Nuclear, Electric Boat and Northrup Grumman every 2 years with no findings.
  • Perform all marking of material for traceability in accordance with MIL-STD-792.
  • We supply all Lab Reports and all Certifications.
  • 100% Visual Inspections are performed on all material.
  • We have systems in place to handle the use of NO-FORN documents and have been approved for use in military critical technical data.

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At a Glance

Generic Name
High Density Polyethylene

Available In

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Technical Information

Stock Products Properties Applications Advantages

Stock Products

Sheet 1″ 48”x96” CTS 5% Boron Filled – Purple, 2% Boron Filled – Red

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


Physical PropertiesUnitsASTMResults
Density g/cc D1505 1.04
Mechanical PropertiesUnitsASTMResults
Tensile Strength at Yield psi D638 >3,960
Durometer Shore D D2240 66
Vicat Softening °F D1525 192
Durometer Hardness D2240
IZOD Impact Strength Notched ft-lbf/in D256
Thermal PropertiesUnitsASTMResults
Heat Deflection Temperature @66 psi °F D648

NOTE: The property values presented above are typical values intended for reference and comparison purposes only. They should NOT be used as a basis for design specifications or quality control. Contact us for manufacturers’ complete material property datasheets. All values at 73°F (23°C) unless otherwise noted.


  • Airport Security
  • Sea Port Security
  • International Border Security
  • Doors for Linear Accelerators
  • Medical Vaults
  • Nuclear Reactors
  • Nuclear-Powered Vessels
  • Research Applications


  • Lower cost than lead
  • Lighter weight than lead
  • Replaces lead in nuclear shielding applications
  • Standard is 5% boron by weight – HDPE base material
  • Can be certified to Mil-P-23536 A Type B (1/2%, 1%, or 2% Boron by weight)
  • Mil-P-23536 certified material is inspected per Mil-I-45208 A
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