TOYNOL® FS-640

TOYNOL® FS-640 by Tianjin Surfychem is non-ionic modified acetylenic diol surfactant. It acts as a defoamer, wetting, flow & levelling agent. Improves the ability to wet various substrates under dynamic conditions. It is a pale yellow, silicone-free, oil-free, APEO-free, non-toxic, slightly soluble liquid. Offers low static and dynamic surface tension. Recommended applications include water-based adhesives. The optimal concentration ranges between 0.2% to 2% by weight.