Does humidity and temperature affect the shelf life of polishing abrasives?

The influence of humidity: Humidity is one of the key things that affect how long polishing abrasives can be stored. If the humidity is too high, the abrasives will soak up moisture. This will make them less good at grinding and less stable. For example, brown corundum emery can easily soak up moisture in a damp place and its performance will go down. So, when you store polishing abrasives, you need to make sure the humidity isn't too high to stop the materials from getting wet. Usually, the relative humidity should be between 50% and 70%. This can stop there being too much water to cause dilution problems and also cut down the loss of volatile parts.

The influence of temperature: Temperature also matters a lot for how long polishing abrasives can be stored. If the temperature is too high, the inside structure of the abrasives will change and they won't work as well. For instance, some organic grinding agents might break down quickly at high temperatures and turn into useless stuff. This makes the polishing liquid lose its ability to polish. At the same time, temperature also affects the thickness and how well the polishing liquid spreads out. Within the right temperature range, a higher temperature can help make the polishing liquid less thick and the abrasive particles spread out more evenly. But if the temperature is too high, it might mess up the structure of the surfactants and make the abrasive particles less stable when they spread out. So, when you store polishing abrasives, you should pick a cool and well-ventilated place. Keep it away from direct sunlight and really hot environments. Generally, the ideal storage temperature should be around room temperature, about 20°C to 25°C.