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  • Electroplating
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Electroplating

Electroplating is the process of using an electrical direct current to coat an electrically conductive object with a thin layer of metal. EPi offers a variety of high-quality electroplating processes that are ideal for all types of metal finishers. Learn More

Electroplating Finishes

  • Brass
  • Cadmium
  • Chrome
  • Copper
  • Nickel
  • Silver
  • Tin
  • Zinc
  • Mobile App
Learn more about Electroplating on our blog!

Black Oxide

Black oxide finishes offer dimensional stability, eye-appealing appearances, retention of surface properties, and corrosion resistance when sealed with an oil, wax, or lacquer. Learn More

What type of metal are you blackening?

  • Steel
  • Stainless Steel
  • Cast Iron
  • Aluminum
  • Copper, Brass, & Bronze
  • Nickel
  • Cadmium
  • Zinc
Learn more about Black Oxide on our blog!

Antiquing & Oxidizing

Antiquing, oxidizing, and patining are processes that chemically "age" or "weather" metal, resulting in a variety of colors, finishes, and effects. Learn More

Antiquing & Oxidizing Products By Substrate

  • Copper, Brass, & Bronze
  • Silver
  • Steel Rust Patina
  • Tin & Pewter
Learn more about Antiquing & Oxidizing on our blog!

Rust Preventatives

Every year, rust costs metal-finishers millions of dollars. Water-displacing oils, water-soluble oils, waxes, lacquers, and temporary rust inhibitors can enhance the quality of a metal finish or protect bare steel parts. Rust preventatives offer stain, humidity, and salt spray resistance. Learn More

Rust Preventive by Products

  • Acrylic Resins
  • Clear Gloss Lacquer
  • Copper & Brass Conditioner
  • Corrosion Inhibitors
  • Rinse Water Additives
  • Water Displacing Oils
  • Water Soluble Oils
  • Waxes
Learn more about Rust Preventatives on our blog!

Cleaners

All metals need to be cleaned prior to electroplating, blackening, or finishing. Metalworking fluids and carbonaceous smut need to be removed in a soak, spray, electroclean, or ultrasonic cleaning. A properly cleaned part will have excellent adhesion and be brighter, blacker, and smut-free. Learn More

Cleaning Products By Substrate

  • All Metals
  • Aluminum
  • Brass
  • Copper
  • E-Kleen SR
  • Steel
  • Zinc Diecast
Learn more about Cleaners on our blog!

Passivations

EPi offers high-quality chromates and passivates for a variety of metals. Pass salt spray tests with aesthetically pleasing parts that have superior white/red corrosion resistance. Learn More

Passivations Products By Substrate

  • Aluminum
  • Cadmium
  • Zinc
Learn more about Passivations on our blog!

Acid Salts

Dry-powdered and liquid acid salts are specifically formulated for removing rust, scale oxides, stains, and smut from a variety of metal surfaces. Acid salts are also used to activate metal surfaces for further finishing. Learn More

Acid Salts Products By Substrate

  • Aluminum
  • Brass
  • Cast Iron & Steel
  • Copper
  • Diecast Zinc
  • Zinc
Learn more about Acid Salts on our blog!

Bright Dips

EPi's series of stabilized peroxide bright-dip processes prevent re-tarnishing of brass, leaded brass, and copper after brightening. Chemically polish stainless steel alloys that contain nickel with a formula containing a blend of mineral acids. Learn More

Bright Dips Products By Substrate

  • Copper and Brass
  • Stainless Steel and Nickel Alloys
Learn more about Bright Dips on our blog!

E-Preps

E-Preps are used for one of the most critical steps in the finishing process: preparing your metal parts for successful plating or blackening applications. Learn More

E-Preps Products By Substrate

  • All Metals
  • Aluminum
  • Brass and Steel
  • Copper and Brass
  • Stainless Steel and Nickel Alloys
  • Steel
  • Zinc Diecast
Learn more about E-Preps on our blog!

Metal Stripping

Metal-stripping processes help remove copper, nickel, zinc, or tin from steel surfaces. Learn More

Metal Stripping Products By Substrate

  • Steel
  • Copper, Brass, & Steel Substrates
Learn more about Metal Stripping on our blog!

Phosphates

Iron, manganese, and zinc phosphate finishes provide extensive corrosion protection and prepare surfaces for a strong paint bond. Learn More

Phosphates Products By Substrate

  • Aluminum & Zinc
  • Iron
  • Steel
Learn more about Phosphates on our blog!

Sealers

Powerful corrosion-resistant sealers with exceptional salt spray protection are used over zinc-plated passivations. Learn More

Sealers Products By Substrate

  • Zinc and Passivates
  • Boric Acid Sealer
Learn more about Sealers on our blog!

Waste Treatment

EPi's waste-treatment processes can help reduce overall waste disposal costs and be gentler on the environment. Learn More

Waste Treatment Products By Substrate

  • Coagulants
  • Defoamers
  • Polymers
Learn more about Waste Treatment on our blog!

Brush Plating Chemistry

Products that accommodate brush plating for localized plating or plating of an item that cannot be tank-plated. Learn More

Brush Plating Chemistry Products By Substrate

  • Copper
  • Silver
Learn more about Brush Plating Chemistry on our blog!

Green Chemistry

Cyanide-free processes that eliminate the need to report to the Department of Homeland Security, saving time and money. Learn More

Green Chemistry Products By Substrate

  • Alkaline Non-Cyanide
  • Aluminum
  • Bright Nickel, Acid Copper, Tin, & Solder
Learn more about Green Chemistry on our blog!
  1. EPi
  2. EPi Blog
  3. Trivalent Chromates

EPi Blog Trivalent Chromates

Visit us at the 2020 SHOT Show this January!

Visit us at the 2020 SHOT Show this January!

Posted By Eric Olander on December 20, 2019

Baking Yellow Chromate E-PASSivate Yellow Red and E-Chrome Ultra Yellow Save Time and Money!

Posted By Eric Olander on October 14, 2014

One of the challenges with yellow hexavalent chromates is the temperature of the chromate film cannot go above 150 F without losing all of its corrosion protection. EPi now has two solutions for the zinc finisher that result in long-lasting corrosion protection and slightly change color during the...
Continue Reading…

New E-PASSivate Yellow Red Trivalent Passivation install in New York Looks like HEX Yellow Chromate

Posted By Eric Olander on February 27, 2014

These pictures don't show the true HEX yellow color that E-PASSivate Yellow Red has to offer since we used an iPhone to take the pictures. EPi's distributor Rich Mazzamaro Gilbert and Jones (New Britain, CT) installed the E-PASSivate Yellow Red trivalent passivation recently in New York and...
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EPi's E-Commerce site Offers Shipping Discounts and Mobile Website for EPi E-Commerce Orders!

Posted By Eric Olander on March 4, 2013

The last two months EPi has been offering shipping discounts on orders placed on EPi's e-commerce site saving our new and existing customers money. For the month of March the shipping discount will be: $5.00 off on shipping charges on purchase  of $50-100 order $10.00 off on shipping charges on...
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PASS Your Salt Spray Tests with Flying Colors: E-PASSivate Blue

PASS Your Salt Spray Tests with Flying Colors: E-PASSivate Blue

Posted By Eric Olander on July 30, 2012

EPi Congratulates Master Lock's 90th Year

Posted By Eric Olander on March 8, 2010

EPi Congratulates Master Lock's 90th Year EPi was recently asked to participate in congratulating Master Lock in its upcoming 90th year in business. Of those 90 years, EPi has been doing business for over 40 years with Master...
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Eric Olander is Featured in the Latest "END OF THE LINE" in April 2009 Issue of Products Finishing Discussing on Sur/Fin 2009 Louisville, KY

Posted By Eric Olander on March 25, 2009

A few weeks ago I was interviewed for an article for the "END OF THE LINE" in Products Finishing (PF). In the April 2009 issue of Products Finishing you will find the interview on page 56. For those of you that do not have a subscription to PF you can see the article via web by going...
Continue Reading…

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