Rhodoline 640 Hydrophobic silica-type Rhodia Defoamers / Anti-Foaming Agents >> Silicone based ADHESIVE >> Water-based RHODOLINE 640 is a hydrophobic silica-type defoamer used in the manufacture of water-based coatings, latex, adhesives, and wallcoverings. 100% active liquid Excellent efficiency Excellent shelf life in finished product Rapid bubble-break In a typical application, 0.1-0.5% RHODOLINE 640 provides excellent foam control. RHODOLINE 640 is not water-dispersible and should be used as received. 100% active, hydrophobic silica-type defoamer. Used in the manufacture of water-based adhesives. Offers very good efficiency and shelf life in finished product, and rapid bubble-break. Use level: 0.1-0.5%.