SealPlate 50 um thickness polyester sealing films minimize evaporation, prevent spillage and contamination between wells, and provide a secure seal, not just a cover. Secure sealing of all wells eliminates "edge effects" in sensitive ELISA assays. SealPlate sealing films can also be used with tissue-culture plates for short-term storage, incubation, and containment of biohazards. SealPlate sealing films are non-pierceable. Film: Polyester, 25 um thick Adhesive: Acrylic, 25 um thick Properties: Marginally pierceable Recommended Temperature Range: -40 to 120 C Sheet Dimensions: 79.4 x 141.0 mm 100 sheets