Heat sealing offers a 100% effective method of plate sealing, for complete seal integrity, as well as being quick and cost effective. Our Universal Peel Heat Seal is a laminate seal compatible with PP, PE, PS, COC and PC plates, providing the highest flexibility in plate material choice. Sample access is possible by peeling from the compatible materials and also by piercing the seal with needles, but not with plastic tips. It is resealable by applying another Universal Peel Heat Seal directly on top of a previously pierced seal. Universal Peel Heat Seal forms a complete seal to a plate enabling low temperature uses as well as high temperature uses, such as PCR (when used with a pressurised heated lid). The seal demonstrates moderate solvent resistance. Use of Universal Peel Heat Seal makes roll changes unnecessary even for customers using different microplate materials, because with minor adjustments of sealing parameters all common microplate materials can be sealed to. Universal Peel Seal is available as sheets, for use with manual and semi-automated sealers, such as our 4s3 Semi-Automatic Sheet Heat Sealer, and in two roll formats compatible with specified automated heat sealers, such as our a4S Automatic Roll Heat Sealer.