How many years can silicone oil keep in stock?

Silicone oil, used as a waterproof additive in gypsum board production, is stable chemistry and therefore does not have an official shelf life. In general, the shelf life is a minimum of 12 months when the material is kept in the original container and stored at room ambient temperatures out of direct sunlight. After 12 months, please check them under the following instructions to make sure their quality does not change to continue to apply.

1. No color-changing, silicone oil is purely transparent.
2. No flocculent sediment under the IBC drum bottom.
3. Put a pH paper inside for 48 hours, and pH paper is without color changed.