Abstract: A coating composition for application to a metal part, which improves corrosion resistance and significantly reduces the co-efficient of friction of the surface of the part and a one coating step method for applying the coating to form two distinct layers on the coated part. The composition includes an oil phase in which polytetrafluoroethelene particles are suspended mixed with a resin film forming paint composition. Upon applying the coating to the part and curing of the resin film, the oil phase separates and forms a overlayer of oil having the polytetrafluoroethelene particles uniformly distributed in the oil layer.

Abstract: A new method and formulation for treating metal parts for corrosion resistance is disclosed wherein both a paint coat and an oil coating formulation are simultaneously applied in a single step to the parts after the parts have been conventionally phosphated. The novel formulation disclosed is a di-phase composition wherein a distinct paint phase and an oil phase are present. The formulation is applied to the parts only when the two phases have been intimately dispersed to form a temporary suspension. Upon drying, the treated part is provided with a paint undercoat covered by an oil coating and exhibits significantly improved corrosion resistance as measured by standard salt spray corrosion tests.

Abstract: A method for coating tin on a electro-conductive substrate in a bath comprising stannous ions, a mineral acid and a surface active agent alone or in combination with a water soluble acrylate and an aromatic aldehyde or ketone. A catalyst metal comprising metallic zinc or zinc alloy and the substrate to be coated are immersed in the bath. During this immersion electro-conductive contact is effected between the substrate and zinc or zinc alloy. A smooth, pore-free, pure tin coat is deposited on the substrate during the time the substrate is in electro-conductive contact with the zinc or zinc alloy.

Abstract: A method for coating tin on an electro-conductive substrate in a bath comprising stannous ions, a mineral acid and a non-ionic surfactant consisting of nonylphenoxypoly (ethyleneoxy) ethanol. A catalyst metal comprising metallic zinc or zinc alloy and the substrate to be coated are immersed in the bath. During this immersion electroconductive contact is effected between the substrate and zinc or zinc alloy. A smooth, pore-free, pure tin coat is deposited on the substrate during the time the substrate is in electro-conductive contact with the zinc or zinc alloy.

Abstract: A method of treating metal parts to provide durable and rust-inhibiting coatings is described. The application method can be used to treat single parts or bulk barrel processing of parts. The method comprises the steps of(a) phosphating the metal parts with an aqueous metal phosphating solution,(b) electrophoretically depositing a siccative organic coating on the phosphated metal parts, and(c) applying a corrosion inhibiting film of oil as a seal coat.