Provided is an adhesive having shielding properties, which is capable of providing a bonded part of a structure with neutron shielding properties, said structure having neutron shielding properties. The present invention is a shield adhesive having neutron shielding properties, which contains a lithium fluoride powder that has a degree of lithium fluoride purity of 99% or more. It is preferable for this shield adhesive to be a two-pack curable adhesive and to contain an epoxy resin as a main component. This shield adhesive can be a two-pack curable adhesive which contains a modified silicone as a curing component, while containing an epoxy resin as a main component.本發明提供一種遮蔽性的黏著劑，其能夠對於具有中子遮蔽功能之結構體的接合部賦予中子遮蔽性。本發明為一種遮蔽黏著劑，其具有中子遮蔽功能，前述遮蔽黏著劑含有氟化鋰純度為99%以上的氟化鋰粉末。前述遮蔽黏著劑為雙液硬化型黏著劑，其主成分較佳為環氧樹脂。前述遮蔽黏著劑為雙液硬化型黏著劑，其能夠含有環氧樹脂作為主成分，並含有改質矽氧樹脂作為硬化成分。
