Читать книгу Additives for Water-borne Coatings - Wernfried Heilen - Страница 66

Oils spreading at the surface only penetrate into the lamellas to a limited depth. For this reason, the lamellas need to be already widely thinned out and the drainage well advanced for the spread-out oil to bridge the lamella. A non-deformable filler enables the penetration depth to be significantly increased; bridging then occurs at higher lamella thicknesses [8].