Aluminum flake is a powder that is typically used in the pigments and coatings industries. It has a platelet like shape to it which makes screening aluminum flake a difficult process. Like any flake powder, the powder is very susceptible to plating across the screen which can kill the air flow and result in a blinded screen mesh. The powder is dense and is typically misshapen so keeping an eye on the layer inside of the screener is imperative. Safety is a huge concern when running this product as well.