What are the ideal storage conditions for metallic pigment pastes?
Ideal storage conditions for aluminium pigments are in the original closed drum at a room temperature of 25°C. As a rule, if aluminium pastes that are usually manufactured as pastes are stored incorrectly, the solvent can evaporate. This then leads to changed optical effects or to an agglomeration of the flakes. If the drum is opened, it should be carefully closed after use. It has also proved best to use all the contents of a drum at once. In the case of drums containing aluminium paste residues, increased agglomeration or solvent evaporation has been observed.
