Getting sticker shock from stainless steel and copper? Porcelain-enamel coatings can be attractive alternatives. Metallic surfaces, special effect colors, and reflective finishes have increasingly found their way into product design. The metallic trend shows no sign of abating. And the growing demand for stainless steel and copper has caused dramatic increases in base metal prices. For example, 304 stainless steel typically used for appliances contains 8 to 10.5% nickel. According to about two-thirds of all nickel production was earmarked for stainless steel in 2005. And nickel prices were the highest since 1989. Cost data from the London Metals Exchange shows an even steeper price jump with nickel prices nearly quadrupling from $5.40/lb in December 2005 to $22.78/lb in May of this year. Copper prices have risen sharply as well. Designers of appliances have taken these sharp cost increases on the chin. But that's about to change. Economical materials such as porcelain-enamel coatings have emerged. These engineered coatings give trendy metallic looks with a substantially lower sticker price. Cost savings per square foot for a typical kitchen range serves as an example. With porcelain-enamel coatings called Evolution, designers can fabricate the range from 24-gauge plain steel instead of 300 Series stainless. The coating would go on as a 0.002-in. (2-mil) ground coat and a 0.004-in. (4-mil) cover coat. Using general market prices from May '07, the metallic-look porcelain enamel would have cut costs by nearly 60%. The porcelain coating also withstands scratches that would relegate a significant percentage of stainless-steel parts to the scrap heap. Unlike their strictly metal counterparts, porcelain-enamel coatings don't discolor from heat and resist stains, scratches, and chemical cleaners. Fingerprints also easily come off. In addition, metallic-look coatings for refrigerators, ranges, cooktops, sinks, and plumbing can also give cabinetry matching or contrasting hues. And the coating resists heat well enough to be used on exterior surfaces of cookware, barbecue grills, and fire bowls that must take not only heat from flames, but weather and corrosion. The coatings can help differentiate products because they have a wide
Products & Services
Industrial coatings are thin films deposited upon materials to add or enhance desired properties, such as color, conductivity, corrosion resistance, etc.
Coating services apply a thin layer of material onto parts or products provided by a client. These services are used by companies that do not have coating technology and equipment in house.
Web Coating Services
Web coating services apply a layer of resin or other liquid coating to the surface of a continuous sheet of material.
Painting, Coating, and Finishing System Integrators
Painting, coating and finishing system integrators provide finishing lines, turnkey coating machines and large-scale systems for production finishing operations. Typically, finishing lines are designed to OEM requirements and are installed on site.
Marking materials include inks, coatings, laser marking materials, tapes, and other supplies used to identify industrial parts, products, materials and packaging.
Topics of Interest
Temperature-sensitive parts that can't stand a lot of heat are now fair game for high-performance coatings. Vapor-deposition processes let designers apply finishes that are both functional and...
4.3.5 APPLICATION OF PRINCIPLES OF GALVANIC CORROSION
A Non-metallic Conductors
Many non-metallic materials are cathodic to metals and alloys. For example, impervious graphite used in heat...
Lacquer is made from the clear sap of the lacquer tree (rhus verniciflura) and used to coat and waterproof objects. Originally, the term "lacquer" referred to solutions of shellac and other resins...
Thermal spray coatings, of which HVOF is one, are an important enabling technology used to enhance the performance of materials in a diverse range of industrial applications. One area which has...
14-9 SURFACE COATING
Surface coating should be chosen with regard to the application it has to serve, along with a consideration for the basic metal it has to cover. Some coatings are used as a...