... .Good compatibility with liquid dielectrics 4.Class A Descriptions: Presspaper PSP3055 (Pressspan) is a special product on the basis of ... any additional binding agents, these are made up into a fibrous web and then pressed. Due to its high ... , motors, etc., and especially in oil-cooled transformers. FeaturesInsulation class A (105 °C)Calendered presspaper, good forming properties, 100 % sulphate ...