Every Solution in Radiation Shielding

Since 1979, MarShield has been North America’s premier lead caster, manufacturer and global supplier of gamma and neutron radiation shielding products and materials to the nuclear energy, nuclear medicine, diagnostic imaging, non-destructive testing and design / build markets. From lead, to tungsten, bismuth, iron, borated polyethylene and non-lead alternatives materials options, we offer design & consultation and will bring turn-key solutions to your
radiation shielding challenges.

MarShield Radiation Shielding is proud to announce their CWB accreditation to CSA N299.3-16 for the supply of radiation shielding and protection products to Nuclear Energy plants and other related industries in Canada and the United States.

We Design, Manufacture & Deliver

Made in North America with Warehousing Around US and Canada

  • News Alert

    MarShield Named Canadians for CANDU Ambassador

    MarShield is proud to be recognized as an official ambassador for Canadians for CANDU, reinforcing our role in supporting Canada’s nuclear energy leadership. As a trusted Canadian manufacturer of radiation shielding solutions for high-risk environments, we remain committed to protecting the infrastructure that powers our clean energy future.

    This recognition from AtkinsRéalis, a global leader in nuclear engineering, reflects our ongoing contribution to a safe, sustainable, and globally competitive nuclear sector. Our shielding solutions continue to support the critical infrastructure behind Canada’s nuclear ecosystem.

  • Lead Lined Cabinets

    MarShield manufactures Standard or Custom Designed Lead Lined Cabinets suitable for Nuclear Medicine or Radiochemistry laboratories. MarShield has worked extensively with architects, contractors and end-users like hospitals, laboratories, and veterinary clinics to ensure that our designs are functional and harmonious with their surroundings while meeting radiation code requirements.

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  • RF Waveguide Air Vents – Shielding Where It Matters

    Control interference at every HVAC entry point with precision-engineered hex cell waveguide vents. Designed for optimal RF attenuation across a broad frequency range, these assemblies combine high shielding effectiveness with low pressure drop. Built to spec. Built to perform.

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  • Borated Polyethylene Neutron Shielding

    Our Plasti-Shield® borated polyethylene sheets and pellets deliver dependable neutron protection for medical, nuclear, and industrial applications. Stocked in 1″ thick 4′ x 8′ sheets, with 5% boron content and custom cutting available. Lightweight, effective, and shipping within 48 hours.

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When Protection, Safety & Success Must be Absolutely Assured !

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  • Shielding Solutions That Lead With Precision

    MarShield is trusted across critical sectors to deliver radiation shielding solutions that meet rigorous safety standards and hold up under extreme operational demands.

    Clients choose MarShield when shielding must:

    • Fit precisely into specialized facility layouts
    • Meet CSA N299.3-16 and ISO 9001:2015 standards
    • Withstand constant radiation exposure over time
    • Include expert consultation and ongoing technical support

    Our reputation is built on precision manufacturing, responsive service, and a proven record in high-stakes environments.

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  • Radiation Shielding at a Glance

    Our latest brochure provides a clear overview of how MarShield supports medical and nuclear environments with tailored, high-integrity shielding systems. View Our Brochure