WD-9 is a high temperature powder with light silicone treatment, mainly used in air heating elements of medium or high wattage loading. It can stand 1050degree.annealing and requires immediate sealing.

Electrical Grade Magnesium Oxide is non-toxic, but with some dust, masks and gloves are proposed to use during operation.

Electrical Grade Magnesium Oxide should be stored in dry places, and are s ested to be used out within 12 months after delivery.