| Ospho Metal Treatment |
Metal Treatment Rust Primer
OSPHO is a balanced formula of phosphoric, dichromate, wetting agents and extenders.
OSPHO is a primer-not a paint. You do not have to remove all rust. Merely remove loose paint and rust scale, dirt, oil, grease and other accumulation with a wire brush - apply a coat of OSPHO as it comes in the container - let dry overnight, then apply the paint.