Semi-finished products Plastic granules Special compounds

Chemical resistance of the ZEDEX ®polymersTo determine whether a ZEDEX ® high performanceplastic is resistant to a specific chemical substance ornot, the following 5 possibilities are at your disposal:1. Relative valuesThe table 9 is used to compare the relative resistanceof high-performance plastics ZEDEX ® tochemicals.Resistance1 excellent2 good3 badX not resistantWeak acidsStrong acidsWeak alkalisStong alkalisOrganic solventsAlcoholsHydrocarbonsFuelsUV-radiations4. Chemical groups list - if chemicals are neitherin the chemical nor in the and synonym listsThe chemicals can be classified into chemical groups,using their chemical formula. These chemical groups,as well as some typical examples, are listed in thetable 10 on page 121.5. pH-limit value list - resistance to inorganicacids, alkalis and saltsThe pH-limit value list offers the possibility to determine,with the help of a known pH-value, the plastics´resistance to the used chemicals. The pH-limit valuelist is in the table 12 on page 122.ZX-100K/MT 2 X X X 1 2 X 2 3ZX-100EL55/63 2 3 2 3 X 3 1 2 XZX-410 familiy 1 1 1 X x 3 X 3 3ZX-530 familiy 1 1 1 1 2 1 3 2 2ZX-550 familiy 1 1 1 1 1 1 1 2 2ZX-750 familiy 1 1 1 1 1 1 1 1 1Table 9: relative resistance2.Chemicals list – when chemicals names areknownIn the alphabetical order arranged list of chemicals(from page 84), the ZEDEX ® materials´ resistance tothe listed chemicals, depends on their concentrationand on the application temperature.3. Synonym list - if chemicals are not available inthe chemicals listThe chemicals are often be known with other names.In the synonym list (from page 116), these chemicalsynonyms are listed keeping the order of with thechemicals present in the chemicals list.ZEDEX ® basic types ZEDEX ® families Post heattreatmentMachiningShippingoverviewSterilizationChemicalresistance83