If you encounter problems during use, first check common phenomena. If the problem persists, contact the technical team of Guoli Chemical for professional support.
Common Problem Self-Check and Handling
Defoamer King FAG470 is a polyether-modified silicone emulsion. Most usage problems are related to addition method, dosage, or storage conditions. When the defoaming effect is poor, please check the following points in order:
- Stratification or sedimentation: The product may experience slight stratification after long-term static storage, which is normal. Stir thoroughly before use to restore a uniform emulsion state before adding; otherwise, uneven active substance concentration may cause performance fluctuations.
- Insufficient or excessive dosage: Defoamers have an optimal dosage range. Too low dosage results in incomplete defoaming, while too high dosage may cause system turbidity or shrinkage (especially in coatings). It is recommended to determine the optimal dosage through small-scale tests, typically starting with a gradient test from 10 to 100 ppm.
- Improper addition location: The defoamer should be added as close to the source of foam generation or the area of vigorous agitation as possible. If using a metering pump for continuous addition, ensure the injection port is in a turbulent zone to allow rapid dispersion of the product.
- Deterioration after dilution and prolonged storage: If diluted with water and stored for a long time, the diluted solution may breed bacteria or cause demulsification. It is recommended to dilute immediately before use, or use within 24 hours after dilution.
- Storage condition issues: If the product has been frozen or exposed to high temperatures above 40°C for a long time, it may lead to demulsification and failure. Check whether the storage environment is within the 5°C to 40°C range.
Emergency Handling (Contact with Human Body)
If accidental contact occurs during operation, refer to the safety data sheet for action:
- Skin contact: Immediately remove contaminated clothing and wash with plenty of water and soap. If irritation or discomfort occurs, seek medical assistance.
- Eye contact: Immediately rinse thoroughly with running water or normal saline for at least 15 minutes, lifting the eyelids to ensure thorough flushing. If discomfort persists, seek medical attention immediately.
- Inhalation or ingestion: If inhaled, move to fresh air; if ingested, rinse mouth with water, do not induce vomiting, and immediately go to a doctor with the product label and SDS.
How to Obtain Technical Support
The database currently does not include the real-time customer service phone number or online contact methods for Guoli Chemical. It is recommended to obtain official technical support through the following channels:
- Visit the official website: Go to the official website of Haian Guoli Chemical Co., Ltd., and look for the "Technical Support" or "Contact Us" page, where you can usually find a technical service hotline, online message system, or email contact information.
- Contact sales or distributors: If you purchased through a distributor or business manager, contact the corresponding salesperson directly, who can quickly coordinate the manufacturer's technical team to intervene.
- Provide complete information: When seeking support, please prepare in advance the product name (Defoamer King FAG470), batch number, application scenario, addition method, dosage, and specific phenomena observed so that technicians can diagnose efficiently.
Precautions
Although this product is not a hazardous chemical, general industrial chemical handling procedures should still be followed. Wear protective gloves and goggles, maintain ventilation, wash hands promptly after use, and avoid eating or drinking in the work area.
