San Diego Plastics
2220 McKinley Avenue
National City  CA  91950
800/925-4855   619/477-4855   FAX 619/477-4874

King Plasti-Shield®

 
Borated Polyethylene Neutron Shielding
King Plasti-Shield® has been used as medical and industrial neutron shielding for more than 25 years. It is a light-weight, cost-effective and easily fabricated solution for a wide variety of neutron-shielding needs. Compared to paraffin-based products, King Plasti-Shield sheets are much more durable and perform well in a wider range of temperatures.

With 5% boron by weight and a distinctive purple color, King Plasti-Shield Industrial Grade is effective in medical and other applications requiring attenuation of thermal neutrons.

Grade II (yellow, 1% boron) and Grade III (red, 2% boron) are used as neutron shielding in the construction and repair of US Navy ships. These products are manufactured to MIL-P-23536, Rev. A. Certification and testing is available to meet MIL-Spec. requirements.

King Plastic's QC inspection has been certified to meet Mil-I-45208A. King Plastic Corporation also offers high-quality, non-borated virgin polyethylene (natural color), which shields against fast neutrons due to its high hydrogen content.

Colors

Purple (5% Boron by Weight)
Product Details:
  • Made in the USA of the finest polymers
    available. Available in 1%, 2% or 5% boron
    content (by weight) or virgin formulas.
  • High cross-section for consistent neutron
    attenuation.
  • Advanced processes and precise tolerances
    ensure superior flatness and consistent density.
  • 1"x4'x8' sheets allow for easy installation.
  • Grade II and III materials are closely inspected
    and controlled in accordance with MIL-P 23536A revision A and shipyard specifications.
  • Independent lab results available (charges
    apply).
  • Supplied in mill shapes, such as sheets, blocks
    and slabs.
  • Can be machined to your specifications.
  • Custom/proprietary colors available with
    appropriate minimum order.
  • Easily fabricated using standard woodworking
    tools. 
  • Used in US fighting ships.


View the Material Safety Data Sheet 2%|

View the Material Safety Data Sheet 5%

 
King Plasti-Shield® Industrial Grade (5%) is in stock or may be produced to order with as little as two to three weeks lead time.
Popular Applications:
  • Medical vaults and doors for linear particle accelerators and other radiation applications, research applications, nuclear reactors and construction of nuclear-powered vessels.
Standard Gauge :
1" / 25.4mm
Approximate Weight :
160 lbs / 72.57 kg
Sheet Size :
48" x 96" / 1219mm x 2438mm
Custom sheets, blocks and slabs available in standard or custom colors.
Standard Sheet Sizes Tolerances :
+1/2", - 1/4"
Weight (lb./Cubic Inch) :
.035
Physical Properties:
Industrial Grade (purple, 5%* Boron by Weight) W
Grade III (red, 2%* Boron by Weight) W
Grade II (yellow, 1%* Boron by Weight) W
Virgin Polyethylene (natural color)
 
Thickness required to attenuate a neutron beam by a factor of 10. m
Material |

Density

|

Thickness

Water | <>

1.0

| <>

8.8"
Concrete |

2.4

|

9.6"
HD Concrete |

3.5

|

9.6"
Iron |

7.9

| <>

5.7"
Lead |

11.3

|

7.8"
King Plasti-Shield |

.92

|

8.0"
* For tolerance information, contact your King Plastic Corp. representative. Custom and proprietary colors available with appropriate minimum order.
 
 

 

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