BYK-345

Silicone surfactant for aqueous coatings, printing inks and overprint varnishes with strong reduction in surface tension resulting in significantly improved substrate wetting. No increase in surface slip. Solvent-free version of BYK-346. The additive provides a large decrease in surface tension in aqueous systems and therefore improves substrate wetting and leveling in particular. Foam stabilisation does not occur or only very minimally and recoatability is not affected. The additive does not increase surface slip. If higher surface slip is desired, it is recommended to combine it with a polysiloxane such as BYK-333. The additive is recommended for all aqueous coatings, printing inks and overprint varnishes which contain a small proportion of organic co-solvent.