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Phosphate Coating Service Companies

IQS Directory provides a comprehensive list of phosphate coating companies and suppliers. Use our website to review and source top phosphate coating services with roll over ads and detailed product descriptions. Find phosphate coating companies that can provide phosphate coating services to your companies specifications. Then contact the phosphate coating companies through our quick and easy request for quote form. Website links, company profile, locations, phone, product videos and product information is provided for each company. Access customer reviews and keep up to date with product new articles. Whether you are looking for information about the phosphate coating process, phosphate fluoride coating services, phosphate coating weights, or customized phosphate coating services of every type, this is the resource for you.

  • Medway, MA

    Innovative Coatings is a manufacturer of plastisol dip molding and fluidized bed powder coatings of epoxy, polyolefins, nylon and vinyl. Our dip coatings are of FDA-approved and biomedical grades. Customers can also have a choice of color plus foam, gloss or texture finish. We draw from 40 years of experience in the plastic molding and protective coating industry. Let's talk about your project.

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  • New Carlisle, OH

    In addition to providing other products and services, Carlisle Plastics offers vinyl coating services. Typical applications of our coating services are for tool handles, screens, grilles and all kinds of other metal parts. No order quantity is too small or large – we are capable of meeting the needs of all kinds of customers with all kinds of order types. Visit our website to learn more.

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  • Sellersville, PA

    For over 30 years, the team at U.S. Plastic Coatings Corporation has been setting the standard for quality plastic coatings to metal processes, including phosphate coatings and similar processes. They are also able to boast about their quick turn-a-round times and affordable prices, which is why they are a popular choice in a variety of industries. Call them today to see how they can help you!

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  • San Antonio, TX

    Texas Dip Molding & Coating is known for our high quality custom coating that maximizes strength, hardness, flexibility and durability for parts designed and manufactured in any application. When you need a dip molding solution, turn to Texas Dip Molding & Coating for our experience and wide range of capabilities. We serve a variety of industries and have the expertise necessary to deliver the quality products you need on time every time.

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  • Houston, TX

    As a metal coating applicator since 1974, Metal Coatings Corporation's industrial coating specialties are fluoropolymer coatings. We make these applications to various shapes and sizes of machined assemblies, components and fasteners. Teflon® coating services, phosphate coatings and more are available.

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  • New Haven, IN

    We make it our goal to offer the top glass cutting services in the industry. Although we started small when we were founded in 1950, we have grown every year and are now one of the largest glass suppliers in the industry. We make products for more than just the optical industry, and can make customized products to suit any need. Contact us for a quote today!

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  • More Phosphate Coating Companies

businessIndustry Information

Phosphate Coating

Phosphate coating is the process of chemically converting the surface of a material referred to as the substrate (typically a metallic element) into a layer of a non-metallic, crystalline conversion coating. Phosphate coating is an important process in many industrial contexts.

There are four main reasons that phosphate coating services are utilized: one, in order to enhance the lifetime of organic coatings; two, in order to provide superior paint or solid film bonding; three, to increase the corrosion-resistance of the material; and four, to provide an excellent lubricant and drawing compound base. Due to the multiple purposes of phosphate coatings, there are a correspondingly vast amount of applications and industries that they are used in, including: automotive, for use in the coating of various power transmission components; industrial manufacturing, to coat castings, iron and steel-based industrial parts; military, for the coating of various defensive moving and threaded parts according to military specifications (MIL-Spec); and aerospace, for adhesive and defensive coatings of various aviation components. Also used in the nuclear energy industry, there are many advantages that come from utilizing phosphate coating services including: improves friction, increases corrosion-resistance and provides both rust-inhibiting and anti-galling characteristics.


Phosphates refer to a salt (also called an ester) of phosphoric acid and typically include three main types: manganese, zinc and iron. In the general process of phosphate coating, phosphate salts (any of the three) are dissolved into a solution of phosphoric acid. Next, the substrate is immersed within the solution, causing a reaction to take place between the chemicals and the metal. This chemical reaction accomplishes four things: one, it locally depletes the hydroxonium ions; two, it raises the pH; three, it causes the dissolved salt to fall out of the solution; and four, it causes the dissolved salt to be precipitated on the surface of the substrate. While the general process remains basically the same, there are some differences between phosphate coatings depending on the type of phosphate salt that is used in the process. In manganese phosphating, the resulting coat specifically exhibits exceptional oil absorptive characteristics and is often achieved in tumbling barrels. In zinc phosphating, heavy zinc phosphates are commonly used in order to drastically improve the corrosion-resistance of the substrate. Lastly, in iron phosphating a lot depends upon the receptiveness of the substrate's surface, which can affect whether the coating is very fine, or it is coarse. This type of coating is different from metal finishing because it does not focus on the aesthetic appearance of the finished piece.