GelBond Film® is a transparent, flexible polyester film designed to support agarose gels. Gels cast on GelBond® Film remain permanently attached to the film through electrophoresis or immunodiffusion and all subsequent fixing, staining, destaining, and drying procedures. GelBond® Film is available either as precut sheets or rolls. Note: Polyester films will not transmit light of less than 310 nm, and will fluoresce at higher wavelengths.