How to use Defoamer King FAG470?

Before using Defoamer King FAG470, it needs to be slightly stirred. It can be added directly or after dilution. It is recommended to add it continuously to the foaming area through a metering pump. The specific dosage needs to be determined by small-scale tests.

Detailed Description

Defoamer King FAG470 is a high-efficiency emulsion-type defoamer based on polyether-modified polysiloxane technology. It is supplied in the form of an aqueous emulsion. The non-ionic formula makes it extremely easy to disperse in water, allowing it to distribute rapidly and uniformly in the foaming medium. Its unique molecular structure design has the dual effects of rapid defoaming and long-lasting foam inhibition. It remains stable under harsh working conditions such as high temperature and strong alkalinity, and is not prone to demulsification or failure.

Correct usage is crucial for maximizing product performance. Defoamer King FAG470 is easy to use, but the method of addition, dosage, and addition point should be reasonably selected based on actual working conditions to achieve economical and efficient defoaming effects.

Detailed Usage Instructions

1. Preparation before Use

Before use, stir the product gently and evenly. Since emulsion-type defoamers may experience slight stratification after prolonged standing, stirring helps restore a uniform state, ensuring consistent active ingredient content in each use.

2. Addition Methods

• Direct Addition: Add Defoamer King FAG470 stock directly into the foaming system, suitable for intermittent operations or scenarios where rapid defoaming is needed due to sudden foam outbreaks.
• Addition after Dilution: Dilute the product with several times the amount of water before adding. The diluted solution should be prepared fresh and used immediately, and not stored for long periods. Dilution facilitates faster dispersion of the product in the system, suitable for continuous production processes.
• Continuous Addition via Metering Pump: The recommended optimal method. Continuously drip Defoamer King FAG470 through a metering pump into the area where foam is most concentrated (e.g., near the stirring shaft, liquid overflow area, aeration zone, etc.) to achieve sustained and stable defoaming and foam inhibition effects.

3. Addition Point

The defoamer should be added to the foam generation area or the site where foam is about to form, not on the surface where foam has already accumulated. For example: in an aeration tank, add near the aerator; in a paint dispersion process, add around the agitator blade; in a cleaning system, add at the circulation pump inlet.

4. Dosage Determination

The specific dosage needs to be determined by small-scale tests based on actual working conditions and foam severity. Generally, the recommended initial dosage is 0.01% to 0.1% (i.e., 100 to 1000 ppm) of the total system. Through stepwise testing, find the minimum effective addition that meets defoaming requirements to avoid waste or unnecessary impact on the system caused by excessive use.

Application Scenario Operation Recommendations

Precautions

• The diluted solution should be prepared fresh and used immediately, and not stored for long periods to avoid reduced defoaming effect due to decreased emulsion stability.
• Storage temperature is recommended to be controlled between 5°C and 40°C. Avoid freezing or prolonged high temperatures to prevent damage to the emulsion structure of the product.
• After opening, the product should be used up as soon as possible. Unused product should be sealed and stored to prevent water evaporation and external contamination.
• It is recommended to wear protective gloves and safety glasses during operation to avoid product contact with eyes and prolonged skin contact.
• Avoid mixing and storing with incompatible substances such as strong oxidizers, strong acids, and strong alkalis.
• The product is a non-hazardous chemical and non-flammable, but may decompose under heat in a fire to produce harmful fumes. Firefighters should wear self-contained breathing apparatus.