That kontakt 60 is not good (it is one of those that leave the protective layer). I found some reference on how it is recommended to use the Kontakt WL to clea

That kontakt 60 is not good (it is one of those that leave the protective layer). I found some reference on how it is recommended to use the Kontakt WL to clean the residues of the Kontakt 60: http://www.kontaktchemie.com/koc/KOCproductdetail.csp?product=KONTAKT%2060 http://www.kontaktchemie.com/koc/KOCproductdetail.csp?produc... So you want the Kontakt WL and not the 60: http://www.kontaktchemie.com/koc/KOCproductdetail.csp?division=&product=KONTAKT%20WL&ilang=en&plang=en http://www.kontaktchemie.com/koc/KOCproductdetail.csp?divisi...