Saphira Foils are factory tested and approved and made of high quality plastic. The Saphira foils are produced under rigorous quality standards. Saphira ink foils’ dimensional stability, especially at the edges, makes them easier to fit. The foil is resistant to FOGRA-certified cleaning solutions. Its tensioning and stretching properties are maintained at all times. Based on the above-mentioned specifications, Saphira ink duct foils ensure uniform reproducibility of coloring for repeat jobs. (N.B.: Using competitors’ foils can result in quality deviations within the foil production process, which may lead to different coloring for repeat jobs.) The design stops ink running under the foil or dripping into the ink pan Saphira Ink duct foils are manufactured and tested (e.g. for thickness, curvature, and material composition) in strict compliance with the specifications defined by Heidelberg. This enables precise insertion / handling when the foil is replaced.