What is the best way to store your powder? How long can powder be stored?

Powder storage for many months is often a normal practice. Proper storage for powder coating prevents particle agglomeration and reaction advancements, and ensures satisfactory application which is very critical. During application powder coatings must be easily fluidizable, free-flowing and capable of accepting and maintaining a good electrostatic charges.


The key factors affecting powder coatings storage can be identified as:

  • Temperature
  • Moisture/Humidity
  • Contamination
  • Direct sunlight

Ideally, powder should be stored in the optimum conditions of less than 80°F/ < 25°C and approximately 50-60% relative humidity. Avoid placing powder inventory in close proximity to any heat source such as an oven, washer, furnace, space heater, etc. Powder packaging is designed to protect the contents from compression that can result in lumps that are not readily broken.

NB: Do not stack packages of powder that are broken or collapsed.

Some powders with special appearance, performance, or cure properties may have greater sensitivity to storage conditions, and should receive greater attention when stored to ensure the desired results.

Additional care and attention should be taken to ensure the powder is properly stored, especially during the hot season.

In general, powder coatings have a shelf life of one year from the date of manufacture provided they have been properly stored as detailed above, unless stated otherwise in the relevant product data sheet. To enquire more about powder storage visit us on:

Nationwide Electrical Industries Ltd.

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Nationwide Electrical Industries Ltd © 2019

Nationwide Electrical Industries Ltd © 2019