Low-foam penetrant SF (fatty alcohol polyoxyethylene ether phosphate) is a nonionic surfactant with relatively stable chemical properties. The core objectives of its storage are to prevent moisture absorption and deterioration, avoid molecular structure degradation caused by high temperatures, and prevent contamination by impurities. As long as it is stored strictly according to the recommended conditions, the product can maintain its key properties such as low foaming and penetrating power for an extended period.
Regarding the shelf life, the Guoli Chemical product database has not yet provided a clear shelf life for this product. This is a common situation in the chemical industry—many industrial surfactants have good chemical stability and do not have obvious failure points under ideal storage conditions. However, from the perspective of industry practice and quality control, it is recommended that users prioritize use of the product within 12 months after receipt, and it should not exceed 24 months at most. If this period is exceeded, samples should be tested for appearance, pH, and penetrating performance before use to ensure they are qualified.
If during storage the product is found to have abnormal phenomena such as stratification, turbidity, significant color deepening, or unpleasant odor, even if it is still within the recommended period, it should be stopped and quality verification should be carried out. This usually means the product may have been dampened or contaminated.
| Storage Element | Specific Requirement |
|---|---|
| Ambient Temperature | Should be controlled between 5°C and 35°C, avoiding high temperature and low-temperature freeze-thaw cycles |
| Storage Environment | Cool, dry, well-ventilated dedicated warehouse, avoiding direct sunlight |
| Container Status | Keep sealed to prevent moisture absorption or entry of foreign objects |
| Substances to Avoid | Keep away from heat sources, ignition sources, and incompatible materials (such as strong oxidizers) |
| Segregation Requirements | Strictly prohibit mixed storage with food, feed, and drinking water |
| Protective Facilities | Should be equipped with spill containment facilities such as leak-proof trays |
| Inspection Frequency | Regularly check packaging integrity; if leakage is found, transfer immediately and handle properly |
To maximize product service life, it is recommended to follow the first-in, first-out principle and prioritize using inventory from earlier batches. After each use, the drum lid should be immediately closed to reduce product exposure to air. If large quantities are purchased and need to be stored for a long time, consider repackaging large drums into small, sealed containers to reduce the risk of contamination from repeated opening of the same container.