Borated Polyethylene Sheet
Engineered neutron shielding for medical, nuclear & research. Tailored boron content, precision machined, ready to install.
Request custom quoteboron loading
thickness range
Why borated polyethylene?
It combines hydrogen-rich polyethylene (slows fast neutrons) with boron-10 (captures thermal neutrons). The result is a lightweight, machinable, and highly effective barrier against neutron radiation. 5x more effective than pure polyethylene for thermal neutrons.
Boron content – pick your grade
| Boron content | Typical density | Best application |
|---|---|---|
| 3% – 5% | ~1.01 g/cm³ | Standard medical/industrial: LINAC bunkers, hospital doors. |
| 10% | ~1.06 g/cm³ | Enhanced protection: research labs, PET cyclotron rooms. |
| 20% | ~1.16 g/cm³ | High‑flux: nuclear power plants, spent fuel racks. |
| 30% | ~1.28 g/cm³ | Extreme: particle accelerators, neutron sources. |
| Custom blends | Variable | Mixed fields: combined with lead/tungsten for gamma+neutron. |
*Custom thickness 6mm – 300mm, sheets up to 2m x 6m.
Technical specifications
Base resin
HDPE / UHMWPE, black (B₄C), custom colours.
Density range
1.01 – 1.28 g/cm³ (increases with boron).
Temperature range
-269°C to +85°C (cryogenic).
Flame retardancy
Self‑extinguishing grades optional.
Machinability
Easily cut, drilled, welded — standard tools.
Certification
Full material traceability, mill certificates.
Key advantages
- 5x better thermal neutron attenuation
- Lightweight – reduces structural load
- Fully machinable / weldable
- Resists moisture & chemicals
- Custom sizes & CNC fabrication
- In‑house molding & assembly
Applications across industries
Medical
- >LINAC bunker doors
- >PET/CT suites
- >Proton therapy walls
Nuclear energy
- >Reactor shielding
- >Dry cask storage
- >Spent fuel transport
Research
- >Beam stops / collimators
- >Neutron generators
- >Calibration sources
Industrial & security
- >Cargo scanners
- >Oil well logging
- >Neutron radiography
Why choose us
In‑house CNC machining
We deliver finished parts from your drawings – holes, bevels, complex contours.
Full traceability
Material certifications, batch numbers, and inspection reports.
Fast turnaround
Ready to ship custom orders quickly – standard sheets ship in days.
Frequently asked questions
5% vs 30% – what’s the difference?
Higher boron content means more boron atoms per cm³ to capture neutrons. 30% is used in high‑flux environments like spent fuel or reactors; 5% is typically sufficient for medical LINAC rooms.
Can you machine it for me?
Absolutely. Send us your CAD drawing or sketch; we fabricate finished parts including holes, bevels, and assemblies.
Does it also block gamma rays?
It primarily stops neutrons. For mixed fields (neutrons + gamma) we recommend layering with lead, bismuth or tungsten – we can supply multi‑material assemblies.
What sizes are available?
Sheets up to 2m x 6m, thickness 6mm to 300mm. We cut to your exact dimensions.
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