Magnesium powder 200 mesh coated flake 500 grams.
IMPORTANT! It has come to our attention that the magnesium powder is coated however with possibly only a thin layer. If the Mg powder is intended for use where it is imperative that it will not react, then please recoat it with a suitable agent such as linseed oil (preferred) or potassium dichromate. A google search will yield the info you are looking for. Cheers!!!!