King Plasti-Shield®, The Borated Polyethylene Neutron Shielding Material

King Plasti-Shield® is a borated polyethylene neutron shielding material. It is the product of a proprietary process called K-Stran™, the most advanced manufacturing process for superior flatness and consistency of 1” thick. Custom sheets, blocks and slabs can be made as a special order in the compression mold or extrusion mold. King Plasti-Shield® has a smooth finish on both sides of the sheet. It is made with 5% boron by weight and our trademark purple color. King Plasti-Shield® is an effective shielding material to meet all applicable applications for healthcare cancer treatment centers, diagnostic and hospital facilities. Applications include linear accelerators, nuclear or radiation shielding, industrial use, security such as seaports and airport security, nuclear submarines, nuclear power plants, border protection and other applications requiring attenuation of thermal neutrons. The polymer sheet never needs painting or refinishing, works like wood and it is easy to fabricate using common woodworking tools and techniques.

Where to Buy

Standard Sheet Size

Standard Gauge

Approximate Weight

Tolerance Information:

K-Stran™

Gauge 1” ± 5% | Length and width plus only at room temperature

Custom sheets, blocks and slabs available in standard or custom colors

*All values are determined on specimens prepared according to ASTM Standards.
Thickness required to attenuate a neutron beam by a factor of 10.

The above table is for illustration only, designers of radiation shielding must always consult an engineer to determine the shielding requirements for the specific application.

Custom and proprietary colors available with appropriate minimum order.

Nominal values should not be interpreted as specifications.

5% Purple

*Note: Color accuracy can vary considerably on computer monitors and printers. Please consult your distributor for a product sample before making critical color choices. Specialty colors by special order only.