According to the technical data of Guoli Chemical, the product database does not include problem handling procedures or technical support contact information. Therefore, specific troubleshooting steps or official support channels cannot be provided. However, I can offer a general troubleshooting approach based on product characteristics and suggest ways to obtain assistance.
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**General Troubleshooting Approach**
When thickener 6000DS (powder), thickener 638 (liquid), or PEG-150 series fail to achieve the expected thickening effect or cause anomalies in application, check the following aspects one by one:
1. **Dissolution and Dispersion Process**
- **6000DS (powder)**: Ensure it is slowly added to water under stirring to avoid forming insoluble "fish-eye" clumps. Water temperature is recommended at 20℃~40℃; overheating may cause local hydrolysis or uneven dispersion.
- **638 (liquid)**: Although easy to disperse, if the system viscosity is already high, pre-dilute with water or a solvent from the formula before adding to ensure uniform mixing.
- All grades require sufficient stirring for 20~30 minutes for complete hydration to achieve final viscosity.
2. **Formula Compatibility Check**
- This product is non-ionic and should be compatible with most anionic, cationic, and non-ionic systems. If the formula contains high concentrations of electrolytes, strong acids, strong bases, or certain polar solvents, thickening efficiency may be reduced.
- If thinning (viscosity decrease) occurs: Check for cosolvents that reduce cloud point (e.g., ethanol, isopropanol), or if the system temperature exceeds the cloud point causing precipitation.
- If turbidity or precipitation occurs: Investigate the presence of incompatible anionic polymers or high salt concentrations.
3. **pH and Water Quality Effects**
- Data clearly states this product is "acid-resistant, alkali-resistant, and hard-water-resistant," but extreme pH (e.g., <2 or >12) may still cause slow degradation over time. Calcium and magnesium ions in hard water usually do not affect non-ionic thickeners, but when combined with anionic systems, hard water may cause surfactant precipitation, indirectly affecting overall rheology.
4. **Recommended Dosage**
- **6000DS (powder)**: 0.5%~2.0% in shampoo/shower gel; 0.3%~1.5% in water-based coatings.
- **638 (liquid)**: 1.0%~3.0% in shampoo/shower gel; 0.5%~2.0% in coating systems.
Insufficient addition results in poor thickening; excessive addition may cause overly strong thixotropy or gel formation. Determine optimal dosage through small-scale trials.
5. **Storage and Shelf Life**
- Product shelf life is two years from production date under unopened, cool, and dry conditions (temperature <45℃, humidity <70%). If powder clumps or liquid layers severely separate, it may be due to moisture absorption or storage temperature fluctuations, affecting dissolution and thickening performance.
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**How to Get Technical Support**
As the database does not include contact phone numbers, website, or direct technology department information, it is recommended to obtain assistance through the following channels:
- **Visit the official website**: Search for "Hai'an Guoli Chemical Co., Ltd." official website. The "Contact Us" or "Service Support" page usually provides technical hotline, email, or online message form.
- **Contact supply channel**: Directly contact the distributor from whom you purchased the product or Guoli Chemical sales personnel. They can transfer your inquiry to technical engineers.
- **Provide detailed information**: When seeking help, prepare product grade, batch number, dosage, process conditions (temperature/pH/addition order), full formula ingredient list (confidential parts can be hidden), and specific phenomenon description. This will greatly improve communication efficiency.
If you need me to check other technical parameter sheets for the product, please specify the product grade.
