wa­ter-bead­ing-test

In the water beading test water droplets are applied to the surface of a substrate. The more greasy or oily this is, the more pronounced the beading. Clear droplet formation is an indication of an unclean surface (see illustration).

smallRetina 03:51:46 mediumAlias 03:51:46 large 03:51:46 xlarge 03:51:46