These as-molded, untreated plates are manufactured from a high purity polypropylene copolymer, making them some of the cleanest uncoated plastic plates.

Pure-Pass uncoated well plates are manufactured from a high clarity, high purity polypropylene copolymer for ultra-low extractables. These are molded in a cleanroon and meets all ANSI and SLAS standards.

Pure-Pass coated well plates with the addition of a glass barrier gives an added protection against extractables. Surface chemistry like glass could significantly reduce adsorption risk.