PU color paste is a highly concentrated color dispersion used in coatings, inks, and other industrial applications. The correct storage environment is essential to maintain the stability and performance of PU color paste. The following are the storage environment requirements for PU color paste:
Temperature control:
Ideal temperature range: PU color paste should be stored in a dry, cool, well-ventilated environment, and the temperature should be maintained between 5°C and 30°C.
Avoid prolonged exposure to high or very low temperatures, as temperature fluctuations will affect the stability of the color paste and may cause uneven dispersion or solidification.
Humidity control:
Maintain a low humidity environment and avoid exposure to high humidity. Excessive humidity may cause the container to rust or increase the moisture content in the color paste, which in turn affects the quality of the color paste.
Sealed storage:
PU color paste should be stored in a sealed container to prevent moisture and air from entering, and to prevent the color paste from being contaminated or deteriorating.
Try to avoid frequent opening of the lid to reduce the entry of outside air and maintain the stability of the color paste.
Avoid direct sunlight:
Color pastes should be stored in places away from direct sunlight. Ultraviolet (UV) radiation will accelerate the degradation of certain components in the color paste and affect the stability of the color.
Storage location:
The storage location should be away from flammable or corrosive substances and avoid direct contact with chemicals.
Keep the storage area well ventilated to discharge possible volatiles in time.
Avoid freezing:
PU color pastes should not be stored in an environment below 0°C. Freezing may cause the components of the color paste to separate or condense, affecting its application effect.
Avoid physical vibration:
The storage environment should avoid strong vibration, as this may cause uneven dispersion of the pigments in the color paste and affect its uniformity.
In summary, PU color pastes should be stored in an environment with suitable temperature, low humidity, good ventilation and avoid direct sunlight. It should also be fully stirred before use to ensure that the pigment is evenly dispersed.
