Phosphating: Unparalleled Surface Protection


Phosphate Wires

Surface treatment has been an integral part of metal finishing for centuries, and one method that has stood the test of time is phosphating. This chemical conversion process, dating back to the 19th century, has evolved and found diverse applications in modern industries. In this blog post, we explore the historical roots, general aspects, benefits, and applications of three common types of phosphating: zinc, manganese, and iron phosphating.

Historical Roots of Phosphating

The earliest work on phosphating can be traced back to the 19th century. Initially, it was used as a method to improve the corrosion resistance of iron surfaces. Over the years, researchers refined the process, and its applications expanded to various metals, including steel, aluminium, and zinc. During World War II, the technique found its initial widespread application in the production of firearms for the United States military.

General Aspects of Phosphating

Phosphating is a chemical conversion process that involves the formation of a phosphate coating on metal surfaces. It is typically performed through immersion or spraying in a solution containing phosphoric acid or other phosphates. The reaction between the metal surface and the phosphate solution results in the formation of metal phosphate compounds, creating a protective layer.

Three Common Types of Phosphating

Zinc Phosphating: This type of phosphating is widely used due to its superior corrosion resistance and paint adhesion properties. It is commonly applied to steel and iron surfaces, protecting them from rusting and ensuring better paint adhesion for subsequent coatings.

Manganese Phosphating: Manganese phosphating provides excellent wear resistance, making it ideal for applications in which metal surfaces are subject to friction, such as gears and automotive components. Additionally, it offers moderate corrosion protection.

Iron Phosphating: Iron phosphating is commonly used as a pretreatment method for steel surfaces before painting. It enhances paint adhesion and provides moderate corrosion protection.

Benefits of Phosphating

  • Corrosion Resistance: Phosphating forms a protective layer on metal surfaces, shielding them from corrosive environments, such as saline or coastal regions, and increasing their lifespan.
  • Paint Adhesion: Phosphating provides an ideal surface for the adhesion of paints, primers, and coatings, ensuring long-lasting and durable finishes.
  • Lubricity and Wear Resistance: Certain types of phosphating, like manganese phosphating, offer lubricity and wear resistance, reducing friction and extending the life of components subject to mechanical stress.

Applications in Various Industries

From automotive to aerospace, phosphating finds applications in diverse industries, ensuring that metal components stand strong against the challenges of time and the elements. The versatility of phosphating has led to its widespread adoption across numerous industries, including:

  • Automotive: Used for automotive components like fasteners, chassis, and engine parts to improve corrosion resistance and paint adhesion.
  • Aerospace: Phosphating protects aircraft components from the harsh conditions of the sky, enhancing their longevity and reliability.
  • Machinery: Metal gears, shafts, and hydraulic components benefit from phosphating’s wear resistance and anti-corrosion properties.
  • Construction: Steel used in construction applications benefits from the enhanced corrosion protection provided by phosphating.

Phosphating, with its historical roots and continued relevance in modern industries, remains a vital surface treatment process. Whether it’s zinc, manganese, or iron phosphating, this time-tested technique offers numerous benefits, including corrosion resistance, paint adhesion, and improved wear resistance. To know more about Growel’s phosphating solutions, click here.

A Look into the Evolution of Pipeline Coatings

This growth in gas exploration has initiated new markets for pipeline coatings and joint coating materials as evaluations of pipeline construction in Pennsylvania. Here given are the descriptions of coating material, surface preparations, and the methods correctly that are used to protect the gas pipelines. This will also contribute worthy insight into the types of polymer-based coatings that a high level of approval in the gas pipeline and also they are cost-effective.  

What Are The Main Types OF Industrial Protective Coatings Available?

The industrial coating includes the application of increasing the solution when products are manufactured. The industrial coating does add an element to the industrial components, parts, materials and metals which can make a product stronger, protected and durable and even aesthetic. Just before selecting any industrial protective coatings, know the distinct types of industrial protective coatings present in the market. 

What Is The Process Of Pipe Coating?

A pipeline coating is a cost-effective and sensible solution that is done purposely to maintain pipelines’ integrity. This coating helps in providing a constant protective lining that helps in saving pipelines from the damaging effects of corrosion. Pipeline coating is considered as one of the most reliable corrosion prevention methods used by industries today worldwide. However, pipeline coating is not an easy task; it requires a process that has a lot of steps to follow to get into a successful pipe coating mission. We will talk about its process, but before that, let us jump into the uses of pipe coating.

How can your industry benefit from industrial coating?

In many cases, repair and new construction of industrial floors, particularly when associated with change of use, require recovery of the concrete support to be covered and protected quickly. To say that coatings manufactured by the industrial coating manufacturers are highly useful for industries is an understatement, it means a lot to industrial productivity. Let us learn about some benefits.<!–more–>

Role of Solvents in Paints and Coatings

Solvents are one of the most widely used chemicals in Industrial manufacturing, cutting across sectors. Be it aviation, agro produce, food processing, pharmaceuticals, automobiles, Solvents are an inseparable part of modern day manufacturing. Solvents are added to numerous paints and coatings and according, to their type they serve a variety of different purposes. If you go to any paint manufacturer in India, you will see their dependence on a number of solvents ranging from Ethanol, to esters and other types. Industrial paint suppliers, also keep ample stock of solvents, as they are most often used in combination. If you are looking to for information about the role and function of solvents, we have come up with a guide that will tell you exactly that:


Corrosion is a process which occurs naturally, wherein the process converts any metal with a chemically oriented form such as oxidization. There is a gradual destruction of the metal with chemical reactions with the environment. Corrosion in pipes, simply means the metal due to contact with the external environment starts dissolving especially when in contact with water, causing initial rusting followed by corrosion. Corrosion in pipes decrease their reliability, shelf life and also reduce their functionality.

Role Of Solvents In Paints And Coatings

A solvent is widely used to disperse or dissolve various components that are used in the formulation in coatings and paintings. One can find different types of industrial paints such as organic coatings alkyd coatings, epoxy coatings, polyurethane coatings and inorganic coatings acrylic coatings, ceramic coatings, intumescent coatings. Epoxy paints define high performance and large of coating products that pack up with excellent mechanical, film-building and chemical properties also with short drying and curing duration. There are many paint companies in India that provide the best paints which many of the well-known industries and factories use. One can find many types of solvents that are used in paints and coatings namely hydrocarbon solvents, ketones, esters, alcohols and glycol ethers.