Fat-repellent impregnation of paper, lipophobic properties, Kit test

Formerly 3M kit test, classification of fat impregnation of papers by wetting tests with solutions based on castor oil, n-heptane and toluene. If the fat impermeability of plastic coatings/lacquers, e.g. on paper, is to be tested, please select the "fat permeability/fat density" method.