Zinc Phosphate Coating
A.R. Machining provides zinc phosphate coating services. This process is commonly used to increase shelf life, improve corrosion resistance and provide better paint adhesion on steel and steel alloys.
Material Grades We Commonly Coat
- P110
- L80
- Q125
- Chrome Alloy
- 1018 Steel
- 1026 Steel
- 1045 Steel
- 4140 Steel
- 4145 Steel
- 4130 Steel
- 4330 Steel
- 4340 Steel

The Process
The Coating process centers around a basic pickling reaction. When the metal comes into contact with a solution of phosphoric acid it depletes the hydronium ions. This raises the pH and causes the dissolved salt to separate out of the solution and set onto the surface of the metal. It's important to us to continually update our machines in order to ensure our ability to provide cutting-edge solutions. A.R. Machining considers zinc phosphate protective coating as an important element in our desire to be a turnkey provider. Often a part that is lathed or milled must also undergo this coating process as well. Our capacity to do this in-house allows us to simplify the experience for our clients.
We are ISO 9001 certified and ITAR registered. Contact us today to find out more about our Zinc Phosphating Services!
Parts We Commonly Provide Zinc Phosphate Coating Services
- Engine Parts and Components
- Fittings and Fasteners
- Transmission Parts and Components
- Firearm Parts and Components
- Brake Parts and Component
- Energy Parts
At A.R. Machining, our new tanks are large and allow us to meet a greater range of customer driven specifications. It's important to us to continually update our machines in order to ensure our ability to provide cutting-edge solutions.
Industries Served
Semiconductor
A.R. Machining manufactures many parts used in the semiconductor industry.
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Military and Defense
At A.R. Machining, our 38,000 square-foot facility and forty years of experience allow us to manufacture unique solutions for the military and defense industry.
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Contact Us
632 W. Front St. Hutto, TX 78634
- 512 759 2003
