Defoamer King FAG470 is a high-efficiency emulsion-type defoamer based on polyether-modified polysiloxane technology, belonging to the non-ionic type. Its appearance is an easily identifiable milky white liquid, exhibiting excellent dispersibility in water, capable of instantly and uniformly distributing in the foaming medium. This product is specifically designed for harsh industrial defoaming scenarios, maintaining outstanding chemical stability even under high temperature and strong alkaline conditions.
As a high-efficiency composite additive, its internal effective active substance content is strictly controlled at 20.0%~30.0%, ensuring rapid foam breaking and long-lasting foam suppression at extremely low dosage levels. The pH value of its 1% aqueous solution ranges from 5.0 to 8.0, falling within a neutral to weakly acidic/weakly alkaline range, making it very friendly to the application system.
| Parameter Item | Typical Value / Description |
|---|---|
| Product Appearance | Milky white liquid |
| Ionic Type | Non-ionic |
| Active Content / Solid Content | 20.0 ~ 30.0 % |
| pH Value (1% Aqueous Solution) | 5.0 ~ 8.0 |
| Density (20℃) | 0.85 ~ 1.05 g/cm³ |
| Acid Value | ≤ 1.0 mgKOH/g |
| Water Content | ≤ 1.0 % |
| Water Solubility / Dispersibility | Easily dispersible in water |
| Heavy Metal Limit (as Pb) | ≤ 10 mg/kg |
| Arsenic Limit (As) | ≤ 2 mg/kg |
| Alkali Resistance Stability | Good (Resistant to high temperature and strong alkali) |
| CAS Number | Not available |
| HLB Value / Cloud Point / Viscosity | Not available (Defoamers typically do not apply or specify these) |
Note: The above data are sourced from the product database of Haian Guoli Chemical Co., Ltd. (Guoli Chemical).
Given its non-ionic nature and broad chemical compatibility, Defoamer King FAG470 is recommended for use in high-temperature and high-alkali environments such as water treatment, textile printing and dyeing, industrial cleaning, and metalworking fluids. During specific application, it is recommended to continuously add it via a metering pump to the areas with the most vigorous foam generation to maximize its defoaming and foam suppression performance.