Leaded Glass and Leaded Acrylic both contain forms of lead in the material. Leaded Glass contains over 60%wt of heavy metal oxide with 55%wt being lead monoxide (PbO). Leaded acrylic contains at least 30% by weight of an organolead compound. Both in the glass and acrylic, enough lead compounds are added to maximize shielding while keeping the material clear and transparent.
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