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Storage conditions of electrostatic spray powder

Storage conditions of electrostatic spray powder

 

Storage conditions of electrostatic spray powder
The **storage conditions** for electrostatic spray powder (powder coating material) are critical to maintaining its quality and ensuring effective application. Proper storage helps prevent clumping, contamination, and degradation of the powder. Here are the recommended storage conditions:

### 1. **Temperature**:
– **Ideal Temperature Range**: Store powder coating at a temperature between **15°C to 25°C (59°F to 77°F)**. High temperatures can cause the powder to soften or clump, leading to poor application.
– **Avoid Extreme Heat**: Avoid exposing powder to temperatures above **30°C (86°F)** as this can cause premature curing, especially for thermoset powders.
– **Avoid Freezing**: Extremely cold environments can also affect the powder, making it difficult to fluidize or apply correctly.

### 2. **Humidity**:
– **Low Humidity Levels**: Store the powder in a low-humidity environment, ideally below **50% relative humidity**. High humidity can cause the powder to absorb moisture, leading to clumping, poor fluidization, and uneven application during spraying.
– **Moisture Control**: Ensure the storage area is dry. Moisture can reduce the electrostatic charge during application, leading to poor adhesion.

### 3. **Sealed Containers**:
– **Keep in Original Packaging**: Store powder in its original sealed packaging to avoid contamination and moisture absorption.
– **Reseal Open Containers**: If the powder is opened, ensure it is tightly resealed and stored in a dry environment.

### 4. **Shelf Life**:
– **Use Before Expiry**: Most powder coatings have a shelf life of **6 to 12 months** when stored properly. Check the manufacturer’s specifications for the exact shelf life of the powder, as it may vary depending on the formulation.
– **Avoid Long-Term Storage**: Over time, even in ideal conditions, powders can degrade, leading to poor application performance.

### 5. **Away from Direct Sunlight**:
– **Avoid UV Exposure**: Keep powder coatings out of direct sunlight, as UV light can degrade the powder, causing color shifts or performance issues during curing.

### 6. **Ventilation**:
– Store in a well-ventilated area to prevent any accumulation of fumes or dust, which can also be a safety hazard.

By adhering to these storage conditions, the quality of the powder coating is preserved, ensuring that it applies evenly and cures properly when used. Always refer to the manufacturer’s guidelines for specific storage recommendations for the powder type being used.
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Storage conditions of electrostatic spray powder
Storage conditions of electrostatic spray powder

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