What should I do if problems occur during the use of Polyether L-45? How to obtain technical support?

If problems occur during the use of Polyether L-45, it is recommended to first conduct a preliminary investigation based on the abnormal phenomena, and contact the Guoli Chemical technical team promptly for professional support.

Common Problems and Troubleshooting Ideas

As a nonionic surfactant, problems encountered during the use of Polyether L-45 usually manifest as poor emulsification, abnormal foam, changes in compatibility, or alterations in product appearance. When encountering these issues, preliminary investigations can be carried out as follows:

1. Poor Emulsification\/Dispersion Effect: First, confirm whether the usage concentration is within the recommended range. The HLB value of Polyether L-45 is relatively low, making it suitable for water-in-oil emulsion systems. If used in oil-in-water systems, it may need to be combined with other high HLB surfactants. Next, check the water hardness and pH value. Although L-45 has strong resistance to hard water and is resistant to acids and alkalis, extreme conditions (pH<2 or pH>13) may still affect its activity. Also, confirm whether the properties of the oil phase being emulsified have changed or if there are batch differences.

2. Abnormal Increase in Foam: Polyether L-45 is inherently a low-foaming product. If excessive foam appears, it may be due to synergistic effects when combined with other high-foaming additives or the introduction of impurities in the system. It is recommended to check each compounding component one by one and confirm the operating temperature. The cloud point characteristics of L-45 determine that its surface activity decreases at high temperatures, and foam behavior will also change accordingly.

3. Product Cloudiness or Delamination: The stock solution should be a colorless to slightly yellow transparent liquid. Cloudiness, delamination, or precipitation may occur due to storage at too low temperatures (below 5°C can cause some components to precipitate) or prolonged exposure to high temperatures. It is recommended to store sealed under conditions of 5–35°C and stir evenly before use. If the product has severely deteriorated, stop using it.

4. Skin\/Eye Irritation Reactions: If operators experience skin redness, eye irritation, or respiratory discomfort, immediately perform emergency treatment according to the product safety instructions: For skin contact, rinse with plenty of water for at least 15 minutes; for eye contact, flush continuously with eyelids open and seek medical attention as soon as possible; for inhalation exposure, move the person to a well-ventilated area. Chemical safety goggles and nitrile\/butyl rubber gloves must be worn during operation.

How to Obtain Technical Support from Guoli Chemical

Haian Guoli Chemical Co., Ltd. provides a comprehensive technical service system for all its products. You can get help through the following channels:

• Phone Consultation: Call Guoli Chemical's official technical service hotline directly (see product packaging label or company website). Describe the problem phenomenon, usage conditions, and batch number to the technician for real-time guidance.
• Email\/Online Support: Leave a message on the Guoli Chemical official website or send an email to the technical department, attaching details of the problem, product batch number, and site photos (if any). The technical team will reply and provide a solution within working days.
• On-Site Service: For major technical issues or new application development needs, you can request Guoli Chemical's technical engineers to visit the site for process diagnosis and formulation optimization guidance.
• Sample Retesting: If batch quality issues are suspected, you can send retained samples of the same batch to Guoli Chemical's quality inspection center for retesting and analysis to ensure the product meets factory standards.

Preparation Before Contacting Technical Support

To help the technical team quickly locate the problem, it is recommended to prepare the following information before contacting them:

• Product Batch Number and Production Date: Located on the packaging drum label, used to trace the production batch.
• Usage Formulation and Process Conditions: Including the addition amount of Polyether L-45, addition sequence, system temperature, pH value, water type, etc.
• Description of Abnormal Phenomena: Specify the manifestation of the problem (e.g., emulsion instability, precipitation, color change), time of occurrence, and frequency.
• Storage Conditions: Storage environment temperature, container material, shelf life after opening, etc.
• On-Site Photos or Samples: If photos of abnormal phenomena or abnormal samples are available, it will greatly improve diagnostic efficiency.

Notes

• Polyether L-45 is a low-toxicity chemical. Please wear protective gloves and goggles throughout the operation and ensure good ventilation.
• It is strictly forbidden to discharge abnormal products directly into sewers or the environment. Dispose of them as waste according to local regulations.
• Opened products should be used up as soon as possible. Unused portions must be sealed tightly to avoid moisture absorption and contamination.
• Any decisions involving formulation adjustments should be verified through small-scale tests under the guidance of the technical team before batch implementation.