Abdos Sealing Mats are made of silicone rubber and are designed to seal PCR plates. These mats feature a plug-style design, with 96 or 384 individual plugs that cap each well of the PCR plate when the mat is compressed. This design ensures a secure seal for each individual well. Key Features & Benefits Material: Made of silicone rubber. Individual Well Seal: The mat is made up of 96 or 384 plugs that seal each well individually when compressed. Autoclavable: These silicone sealing mats are autoclavable. Format Options: Available in formats to fit 96-well and 384-well PCR plates.