Borated polyethylene sheet is a product specially designed for nuclear and radiation shielding applications, its neutron shield properties have been tested and certified.As same as other shielding materials ,this material can produce Y-ray under the action of neutron, and Y-ray dose is second grade relative to shielding neutron.Borated polyethylene costs low and light-weight-ed,so it is the best material to replace lead to shield neutron.The boron content is from 2% to 20% by weight according to applications and customer's requirements.