Sealing Film

Sealing film is an adhesive or heat-sealable cover used to protect microplates, culture plates, flasks, and tubes from evaporation, contamination, and cross-well leakage. It works by creating a uniform barrier over vessel openings—often with specialized properties such as pierceability for pipette tips, gas permeability for cell culture, or solvent resistance for chemical assays. In laboratories, sealing film is used for PCR plates, ELISA workflows, sample storage, and transport. Types include PCR sealing films, breathable membranes, foil heat-seals, and solvent-resistant polyester films. Better Equipped offers a selection of sealing films so you can match permeability, chemical compatibility, and temperature tolerance to your protocol.