CoatOSil 77 coatings additive is a nonionic, organomodified trisiloxane surfactant to consider for the formulation of numerous coating systems. This molecule is often called a ‘superspreader’, because it has unique wetting and spreading properties when included in water-borne coatings and inks. It can also improve flow and leveling properties, while effecting air release. It can be considered for high-speed roll applications and for hard-to-wet surfaces.

CoatOSil 77 coatings additive solutions typically provide spread areas more than 100 times greater than the corresponding volume drop of pure water and 25 times greater than a conventional organic surfactant. In addition, CoatOSil 77 coatings additive is 100% active and compatible with a wide variety of water-borne, solvent-borne and radiation-curable resin systems, and can allow for ‘overcoating’ while still providing good gloss. In fact, CoatOSil 77 coatings additive can typically reduce formulations’ surface tension to 20.5 mN/mat at a use level up to 1% by weight. Typical test levels are 0.1-5.0%.

Potential applications for coatings containing CoatOSil 77 coatings additive include, but are not limited to:

• Wood coatings
• Glass coatings
• Spray or high-speed roll applied coatings
• EB or UV curable paints and inks

* CoatOSil is a trademark of Momentive Performance Materials Inc.