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Stripsteel's polyester is a bi-axially oriented material. The process of stretching the material in the two directions aligns the molecules in the polymer creating a much stronger structure with far higher chemical and temperature characteristics allowing the blade to remain even more stable all the way through the temp curve offering a much higher working/service temperature.
This together with the unique laminate structure gives the Polyester blade excellent ‘spring memory’, (Steel blades are all made from ‘spring’ steel) This spring memory provides more consistent pressure on the anilox roll over a longer time and subsequently more consistent ink values.