Zinc-rich primers that protect your structure from corrosion.
Our inorganic zinc-rich primer may be used as a single coat for weathering protection, or be applied as a primer for subsequent application of organic topcoats. It has high zinc content to provide steel with protection of undercoating. Enviro-Zinc 97 is self-curing and has good application characteristics. Organic Zinc Rich Primer. Zinc Organic Epoxy is the primer of choice in highly corrosive environments. This product was formulated to withstand many different environments, when topcoated with Sumter Coatings high quality topcoats. Zinc-Rich Primer vs. Conventional Primers. Q. We have been asked to refurbish some trailers, baggage carts, and other miscellaneous ground support equipment used at airports, using an inorganic zinc-rich primer. We have never used such as primer and would like your comments please. These primers can be applied over clean bare metal or over previously applied paint. As with all coating applications, surface preparation is critical, and you should read the instructions that come with the primer. In any case, conventional primers are more tolerant to the surface condition that is the zinc-rich. Silicate-or epoxy zinc primers – The superior protection April 2006 Page 2 1. Introduction 1.1 General background The application of zinc-rich primers on ferrous substrates is a very efficient method of anticorrosion protection. Most of the zinc primers will still have cathodic protection after 100 days and the primers with high zinc content applied in high film thickness will last for more than 300 days. Compared to real life testing of zinc primers this is not very long but still it is almost a year. Inorganic zinc-rich primers come in two parts; a small quantity of a clear silicate resin in one can, and a large volume of zinc powder in the other. The difficulty faced by the painter is to intimately mix the zinc with the silicate resin. These primers can be applied over clean bare metal or over previously applied paint. As with all coating applications, surface preparation is critical, and you should read the instructions that come with the primer. In any case, conventional primers are more tolerant to the surface condition that is the zinc-rich. Zinc-rich primers that protect your structure from corrosion. Products include inorganic zinc primers, zinc-rich epoxy primers and moisture cure urethane zinc primers. 3. Zinc rich primers are used to protect steel surfaces from corrosion. Unlike regular paints or epoxies which resist corrosio. by forming an impermeable barrier between the metal and atmospheric moisture, zinc rich primers provide corrosion. protection by electrical means. Some types of zinc rich primers are used as a stand alone coating, but often they are topcoated with paint or epoxy (many. industrial coating specifications call for a zinc primer, epoxy intermediate coat and a urethane topcoat). Silicate-or epoxy zinc primers – The superior protection April 2006 Page 1 Abstract The application of zinc-rich primers on ferrous substrates is a very efficient method of anticorrosion protection. It is a known fact that to achieve a long life coating system you need a zinc primer as a first coat. Most of the zinc primers will still have cathodic protection after 100 days and the primers with high zinc content applied in high film thickness will last for more than 300 days. Compared to real life testing of zinc primers this is not very long but still it is almost a year. Zinc chromate, Zn Cr O4, is a chemical compound containing the chromate anion, appearing as odorless yellow powder or yellow-green crystals, but when it is used for coatings pigments are often added. It is used industrially in chromate conversion coatings, having been developed by Ford Motor Company in the 1920s. Zinc Chromate’s main use is in industrial painting as a coating over iron or aluminum materials. It was used extensively on aircraft by the U.S. military, especially during the 1930s and 1940s, but is also used in a variety of paint coatings for the aerospace and automotive industries. Zinc Rich Primers. Our zinc-rich primers offer superior long-term protection for steel from corrosion. They perform similarly to galvanizing. They contain a high percentage of zinc dust, which acts sacrificially when in direct contact with the steel. Organic Zinc Rich Primer. Zinc Organic Epoxy is the primer of choice in highly corrosive environments. This product was formulated to withstand many different environments, when topcoated with Sumter Coatings high quality topcoats. The zinc primer also provides a little ‘barrier' protection as well. 4. Some types of zinc rich primers are used as a stand alone coating, but often they are topcoated with paint or epoxy (many. industrial coating specifications call for a zinc primer, epoxy intermediate coat and a urethane topcoat).
http://www.sumtercoatings.com/zinc-rich-primers.html http://www.paintcenter.org/rj/Aug02h.cfm http://wwwda.jotun.com/www/com/20020115.nsf/viewunid/5591E5F45F4237F3C12571DF002B0EC8/$file/Silicate-+or+epoxy+zinc+primers.pdf http://www.paintcenter.org/rj/Aug02h.cfm http://protective.sherwin-williams.com/coatings/categories/template.jsp?N=27 http://www.qualitypowdercoatings.com/resource_2.htm http://wwwda.jotun.com/www/com/20020115.nsf/viewunid/5591E5F45F4237F3C12571DF002B0EC8/$file/Silicate-+or+epoxy+zinc+primers.pdf https://en.wikipedia.org/wiki/Zinc_chromate http://www.sumtercoatings.com/zinc-rich-primers.html http://www.qualitypowdercoatings.com/resource_2.htm
what is zinc primer