ThermalSeal RT2RR 50 polyester sealing film fits within the edges of raised-rim 96-well plates. It has consistent, optical clarity for reproducible and consistent DNA amplification measurements. An inert, strong, temperature-resistant adhesive assures reliable sealing around each well. Two end tabs assist in positioning the film. Easy removal of the end tabs at perforated boundaries prevents lifting and higher evaporation rates that can occur with films that overlap the plate rim.