Metal Guard 410 HF is a high flash solvent-based, polar water-displacing rust preventive designed for use where higher flash solvents are required. Metal Guard 410 HF is used as received at room temperature and it can be applied by dipping, spraying, or brushing. Metal Guard 410 HF works by displacing moisture on the metal surface, leaving a continuous film of Metal Guard 410 HF directly in contact with the metal surface.
Metal Guard 410 HF meets Military Specifications: Mil-C-16173D Grade 3 & Mil-C-22235A. Parts blackened with Hubbard-Hall’s Black Magic can be immersed in Metal Guard 410 HF while still wet from the final rinse. Metal Guard 410 HF will displace the rinse water to the bottom of the tank, where it can be periodically drawn off. Metal Guard 410 HF is also an excellent final finish for zinc phosphate or manganese phosphate coatings and will give up to 200 hours salt spray.
Metal Guard 410 HF is also used for protection against rust and corrosion on automobile parts and accessories, sewing machines, firearms, fasteners of all types, small gasoline engines, machine tools, dies, jigs, fixtures, and metal stampings. Metal Guard 410 HF is formulated to deposit a slightly oily, thin, transparent corrosion resistant finish.