Houston Plating & Coatings Adds Low-Weight Phosphate Line

The company’s new coating line provides low weight (150-500-mg/ft2) micro-crystalline zinc phosphate.


Facebook Share Icon LinkedIn Share Icon Twitter Share Icon Share by EMail icon Print Icon
electroplating, metal finishing

Source | Houston Plating & Coatings

Houston Plating & Coatings (HP&C, South Houston, Texas) has added low-weight phosphate to its list of plating and coating services.  Its new coating line provides low weight (150-500-mg/ft2) micro-crystalline zinc phosphate, says the company. The line’s low-weight phosphate tank is 30" wide x 142" long x 42" deep, with a lifting crane capacity of 4,000 pounds.

The phosphating process is a chemical reaction that occurs on an iron base substrate when the part is immersed in the phosphate solution. The primary benefits from phosphate coating are strong adhesion and corrosion protection. There are very few environmental issues related to the use of phosphate coatings.

“Phosphate conversion coatings are used on ferrous parts for corrosion resistance, lubrication, or as a foundation for subsequent rust preventatives, coatings or painting,” explains Eric Turner, HP&C’s COO and director of quality assurance. “Applied by immersion, the phosphate solution reacts with the surface of the part to form a thin gray layer of micro-crystalline zinc that is aesthetically pleasing and typically does not affect dimensional tolerances.”

Related Topics


  • Auto Makers Undergo Paint Shop Makeovers

    Ford and GM install new paint shops, equipment to improve efficiency.

  • Cyanide-Free Electroplating of Cu-Sn Alloys

    This paper is a peer-reviewed and edited version of a presentation delivered at NASF SUR/FIN 2012 in Las Vegas, Nev., on June 13, 2012.

  • Measuring the Surface Area of Fasteners

    How do you measure the surface area of a threaded fastener? How much coating would you put on it? How thick of a coating? What about non-threaded fasteners? The U.S. Department of Agriculture’s Forest Service, of all people, may have come up with the solution for those pondering how to coat sometimes-difficult small pieces using computer imaging and software to compute the area.