Incorporation in Paints and Varnishes

3 SPECIFIC ISSUES CONCERNING OIL-BASED ANTIFOAMS 9.3.1 Incorporation in Paints and Varnishes 

As we have seen, suitable antifoams for latex paints and varnishes consist of the familiar mixtures of hydrophobic oils and hydrophobic particles described in Chapter 4. Preparation of such mixtures can be difficult hydrocarbon-ethylene distearamide 

Effect of Latex Polymer on Antifoam Effect of Hexadecane 

Source Adapted from Colloids Surf. A, 283, Garrett, P.R., Wicks, S.P., Fowles, E., 307. Copyright 2006, with permission from Elsevier. 

B is the bridging coefficient. If B 1, then unstable liquid bridges should potentially form, leading to foam film collapse provided the pseudoemulsion films are unstable, too. For interpretation, see Section 4.5.1. 

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