How to store polyether defoamer GP-330? What is its shelf life?

Polyether defoamer GP-330 should be sealed and stored in a cool, dry, and well-ventilated place at 5℃~35℃. There is no official clear indication of the shelf life, but under these conditions, it can usually be stably stored for more than 12 months.

Detailed Description

The storage conditions of polyether defoamer GP-330 directly affect its defoaming performance and product stability. According to the product data of Guoli Chemical, this product is a colorless to light yellow transparent viscous liquid with a freezing point below -20℃. However, under extreme low temperatures, physical changes such as increased viscosity may occur, so freezing must be strictly avoided. It is recommended to store the product in a dedicated warehouse that is cool, dry, well-ventilated, away from fire and heat sources, and protected from direct sunlight.

After opening the product packaging, it should be used as soon as possible; if not fully used, the container must be immediately re-sealed to prevent moisture and impurities from entering the air, which could cause moisture absorption, deterioration, or contamination. The floor of the storage area should be treated with anti-seepage measures, and containment dikes should be set up to accommodate possible leaks. The product itself has strong chemical stability and is stable under normal temperature and pressure, but it should be avoided from being stored together with strong oxidizers and acidic substances.

Regarding the shelf life, the official information from Guoli Chemical states that "the product performance remains stable under recommended storage conditions," but no specific shelf life in months is given. Under normal circumstances, unopened polyether defoamer GP-330 can be stably stored for more than 12 months at 5℃~35℃. It is recommended to follow the production date information on the batch label and confirm the quality before use through visual inspection (no layering, no abnormal turbidity, no obvious sediment). For special shelf life requirements, it is recommended to directly contact Guoli Chemical customer service for confirmation specific to the batch.

Storage Condition Parameters

Packaging Specifications

The standard packaging specifications of Guoli Chemical polyether defoamer GP-330 are:

• 200kg iron drum
• 50kg plastic drum

Specific packaging specifications can be customized according to customer requirements.

Precautions

• Although the freezing point of the product is below -20℃, low temperatures may cause a significant increase in viscosity. If abnormal viscosity is found before use, the product can be naturally warmed in an environment above 15℃ and gently stirred until uniform. Direct heating with open flames is strictly prohibited.
• When opening and taking materials, use clean and dry tools to avoid cross-contamination; tighten the lid immediately after each material removal.
• If stored for a long time, it is recommended to check the product appearance before use: it should be a colorless to light yellow transparent viscous liquid. If obvious layering, turbidity, or odor appears, stop using and contact the supplier for confirmation.
• This product is slightly hygroscopic. Long-term exposure to high humidity environments may affect defoaming performance, so sealing is crucial.