TOYNOL® FS-640 by Tianjin Surfychem acts as a defoamer, wetting, flow & leveling agent. Modified Acetylenic Diol. 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. TOYNOL® FS-640 offers low static and dynamic surface tension. Recommended applications include waterborne inks, varnishes & waterborne automotive coatings, can coatings and non-stick coatings. The optimal concentration ranges between 0.2% to 2% by weight.
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TOYNOL® FS-640 properties
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| Properties | Value & unit | Test condition | Test method |
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| Active Content | 0.0 Visible After Login | Visible After Login | Visible After Login |
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| Surface Tension, Static | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Surface Tension, Static | 0.0 Visible After Login | Visible After Login | Visible After Login |