DHK499 is a kind of organic silicone modified emulsion. It is used as defoamer and foam inhibitor in water system in textile, dyeing and printing, papermaking and swage treatment industry.
Key Features and Typical Benefits
Easily soluble in water. Be suitable for use in water system.
Quick and durable effect with low dosage, also has remarkable foam-inhibiting effect.
Mainly used in aqueous phase with temperature 100-140℃.
Properties:
| Property | Value |
| Physical Form | Liquid |
| Appearance | Shallow white viscous liquid |
| Solid Content (%) | 30.0-34.0 |
| pH value(1% aqueous solution) | 7.5-9.5 |
| Viscosity(40℃),mPa.s | 150-300 |
| Centrifugal Stability (3000r/min×30min) | No layer, no floating oil |
| Solubleness(1% aqueous solution) | Easy to disperse in water |
| Defoaming Effect(mm) | ≤70 |
| Flash Point(°C) | >100 |
| Density ( 25°C),g/cm3 | 0.98-1.08 |
| Ionic Character | Nonionic |
Application:
DHK499 is a little viscous liquid. It is easily soluble in water. Recommend to dilute DHK499 with 20-50 times water or the solution treated, then add it into the solution need to be defoamed.
Dosage
Textile print and scouring: 0.02-0.03g/L
Paper coating paste bleaching: 0.5-2g/L
Note: Detailed process should be adjusted according to preliminary tries.
Operating and safety instructions
It has good stability in water, but when the hardness is greater than 300 ppm, recommend to test the dilution stability before making the solution.
DHK499 is a little viscous liquid. Recommend to dilute it with 1:20-50 water or the solution treated, then add it into the solution need to be defoamed.
To ensure the safety, you should review our Material Safety Data Sheets before using this product under special conditions. MSDS is available from us. Before handling any other products mentioned in the text, you should obtain available product safety information and take necessary steps to ensure safety of use.
Package & Storage
Plastic drum net 50 kg, can be stored for 12 months under room temperature and hermetic condition.