The 10% Defoamer should not be exposed to the sun for long periods, it should be stored indoors and the temperature should be below 32 ° C. In these conditions its life span is 6 months. The Defoamer 10% can tend to phase separation over time when they are at rest, that is characteristic of the material and with simple stirring it is integrable and the product does not lose its characteristics. The separation will depend on the storage conditions, temperature, but in general it is very light.