A chemical or electrochemical treatment of the metal surface to convert it to another chemical form that provides an insulating barrier of exceedingly low solubility between the metal and its environment, but which is an integral part of the metallic substrate. Examples are phosphate coatings on steel and zinc and chromate coatings on aluminum.
Describes the act of coating paper after it is off the papermaking machine. Conversion coating is now generally referred to as off-machine coating.
A chemical or electrochemical treatment of a metal surface to convert it to another form, which provides an insulating barrier of exceedingly low solubility between the metal and its environment, and is an integral part of the metallic substrate. Examples are phosphate coating of steel and zinc and chromate anodizing of aluminum.
Chemical layer formed on the mtal in the pre-treatment process which aids in paint adhesion and corrorsion resistance.
a chemical treatment applied to aluminum
a slightly acidic aqueous solution (water-based) of chemicals
The chemical treatment film applied to the steel or metallic coated sheet prior to painting.
A chemical layer formed on the metal in the pretreatment process which aids in paint adhesion and corrosion resistance.
Treatment, either chemical or electrochemical, of the metal surface to convert it to another chemical form which provides an insulating barrier of exceedingly low solubility between the metal and environment, but which is an integral part of the metallic substrate. It provides greater corrosion resistance to the metal and increased adhesion of coatings applied to the metal.
The subjection of a substrate surface to high temperatures or the pickling process in order to improve photoresistant adhesion.
A coating consisting of a compound of the surface metal, produced by chemical or electrochemical treatments of the metal. Examples include chromate coatings on zinc, cadmium, magnesium, and aluminum and oxide and phosphate coatings on steel. See also chromate treatment and phosphating.
A metal surface layer intentionally developed by chemical reaction for the purpose of protection or looks.
Conversion coatings are coatings for metals where the part surface is converted into the coating with a chemical or electro-chemical process. Examples include chromate conversion coatings, bluing, oxide coatings on steel, and anodizing. They are used for corrosion protection, increased surface hardness, to add decorative color and as paint primers.
