The Affect of water content % for Aluminium paste pigment.
1,The safety. Aluminium is a kind of active metal. The aluminum powder was protected by a layer of Aluminium oxide. In the process of production, we will take off the layer of AlO,and cover the additives. However,if the content of water is to much,the chemical reaction will accur. 2AL+6H2O==2AL(OH)3+3H2.The H2 will be easily fired or exploded. So we must control the content of water to a safe value.