Hot Dipped Galvanized Steel

How Long Does Hot Dipped Galvanised Steel Last in the Indian Climate?

When investing in infrastructure, the most critical question engineers and builders ask is: “How long will this last?” In a diverse country like India, the answer depends heavily on the environment. From the salty air of Mumbai’s coast to the humid heat of Kerala and the dry plains of Rajasthan, steel faces constant battle with corrosion.

Hot Dipped Galvanised Steel is the industry standard for winning this battle. But what exactly is the life expectancy of a galvanized coating under Indian conditions? Let’s dive into the science of durability.

The Science of Longevity: How Galvanizing Protects

The process of galvanising steel involves submerging cleaned steel into a bath of molten zinc. This creates a metallurgical bond, meaning the zinc becomes part of the steel rather than just a surface layer.

  1. Barrier Protection: The coating blocks moisture and oxygen.
  2. Sacrificial Protection: If the surface is scratched, the zinc corrodes first, “sacrificing” itself to protect the underlying steel.
  3. The Patina Layer: Over time, the zinc reacts with the atmosphere to form a hard, insoluble zinc carbonate film that slows down further corrosion.

Life Expectancy Across Indian Zones

The durability of Galvanized steel is measured by the “corrosion rate” of zinc in specific environments. According to international standards and durability guides, here is what you can expect in India:

1. Coastal and Marine Areas (C5 Category)

In cities like Chennai, Vizag, or Mumbai, the air is thick with chlorides.

  • Corrosion Rate: High.
  • Life Expectancy: 15 to 25 years.
  • Pro-Tip: For these areas, a thicker coating (85+ microns) is essential to ensure long-term structural integrity.

2. Industrial Hubs (C4 Category)

Areas like GIDC Manjusar or Noida, where sulfur dioxide and pollutants are present.

  • Corrosion Rate: Moderate to High.
  • Life Expectancy: 20 to 30 years.
  • Effect: Chemical pollutants can accelerate the depletion of the galvanized coating.

3. Inland and Rural Areas (C2 & C3 Category)

Inland regions with low humidity and minimal pollution.

  • Corrosion Rate: Very Low.
  • Life Expectancy: 40–50+ years.
  • Result: This is where Hot Dipped Galvanised Steel truly shines, often outlasting the building itself without any maintenance.

Factors That Influence Life Expectancy

Several technical factors affect performance:

  • Thickness of galvanized coating
  • Steel chemistry and surface preparation
  • Quality control during galvanising steel
  • Maintenance and inspection practices
  • Distance from sea or industrial emissions

Advantages of Using Hot-Dipped Galvanised Steel in India

Choosing Hot Dipped Galvanized Steel offers long-term economic and safety benefits:

  • Reduced maintenance frequency
  • Lower life cycle cost
  • High resistance to monsoon moisture
  • Strong performance in temperature fluctuations
  • Sustainable and recyclable material

In infrastructure projects, reduced maintenance means fewer shutdowns and lower operational costs.

Real World Applications in India

Galvanized steel is widely used in:

  • Crash barriers on highways
  • Transmission towers
  • Solar mounting structures
  • Industrial sheds
  • Cable trays and earthing systems
  • Bridges and rail infrastructure

In all these applications, durability directly impacts safety and project ROI.

Why Professional Galvanizing Matters

Not all coatings perform equally. A uniform and properly controlled galvanized coating ensures long service life. Quality inspection after dipping confirms coating thickness and surface finish.

Choosing experienced professionals ensures:

  • Consistent metallurgical bonding
  • Compliance with IS standards
  • Uniform zinc thickness
  • Reliable long term corrosion resistance

Long Term Value Over Initial Cost

While galvanized products may appear slightly higher in upfront cost compared to painted steel, the long term savings are significant. Maintenance cycles are reduced. Structural repairs are minimized. Replacement costs are delayed by decades.

When evaluated over 30 to 50 years, galvanized steel proves to be one of the most economical solutions for Indian climate conditions.

India’s climate can be harsh on steel structures. However, properly Galvanized steel delivers exceptional durability across rural, urban, coastal, and industrial environments. Through professional galvanising steel practices and correct coating thickness, structures can achieve decades of reliable service.

Investing in high-quality Hot Dipped Galvanized Steel ensures safety, longevity, and cost efficiency. Protect your infrastructure with proven galvanizing solutions and secure long term performance in every climate condition.

Secure Your Infrastructure Today Don’t let corrosion eat into your profits. Whether you are working on a coastal power plant or a rural substation, Tanya Galvanizers provides the protection your steel deserves. Contact Tanya Galvanizers for a Quote Today!

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FAQ

1. Does Hot Dipped Galvanised Steel rust over time? 

While the zinc coating eventually depletes as it protects the steel, it takes decades to do so. Rust only appears once the zinc layer is completely sacrificed, which takes 20-100 years depending on the environment.

2. How does the Indian monsoon affect galvanized coating? 

Rain actually helps by washing away salt and pollutants. However, constant high humidity in tropical zones can slightly increase the corrosion rate compared to arid regions like Rajasthan.

3. Is galvanizing better than painting for Indian industries? 

Yes. Painting only provides a surface barrier that chips easily. Galvanized steel provides metallurgical bonding and sacrificial protection, eliminating the need for costly repainting every few years.

4. What is the standard coating thickness for long life? 

For most Indian industrial applications, a coating thickness of 65 to 85 microns is standard. Coastal projects may require 100+ microns to ensure a lifespan of more than 20 years.

5. Can I use galvanised steel for underground earthing in India? 

Absolutely. Hot-dipped galvanised steel earthing strips are widely used because they resist soil corrosion better than bare steel, ensuring electrical safety for decades.

Hot Dip Galvanizing Plant_Tanya Galvanizer

Hot Dip Galvanizing Plant: Ensuring Durability and Corrosion Protection for Steel Structures

Steel is the backbone of modern civilization. From the towering skyscrapers that define our skylines to the intricate bridges connecting nations and the robust frameworks of industrial machinery, steel provides the strength and versatility required for progress. However, steel has a natural enemy: corrosion. In the absence of a professional-grade shield, steel’s structural integrity is constantly under siege from moisture, salt, and industrial pollutants.

This is where the role of a state-of-the-art hot dip galvanizing plant becomes indispensable. For engineers, architects, and project managers, ensuring the longevity of steel structures is not just a logistical necessity; it is a matter of safety, economy, and reputation.

The Science of Longevity: Understanding the Galvanizing Process

The galvanizing process is a sophisticated metallurgical procedure that goes far beyond simple painting or coating. It involves immersing fabricated steel into a bath of molten zinc at temperatures typically around 450°C (840°F). While the process may seem straightforward, the chemical reaction that occurs is profound.

During immersion, the zinc reacts with the iron in the steel to form a series of zinc-iron alloy layers. These layers are topped with a final coating of pure zinc. Unlike paint, which merely sits on the surface and can easily peel or flake, galvanizing creates a metallurgical bond. The coating becomes an integral part of the steel itself. This “sacrificial” protection means that even if the coating is damaged, the surrounding zinc will corrode first, protecting the underlying steel from rust.

Why Hot Dip Galvanizing is the Ultimate Industrial Shield

In the search for industrial galvanizing solutions, decision-makers often weigh various options like powder coating or electroplating. However, hot dip galvanizing remains the gold standard for several authoritative reasons:

  1. Complete Coverage: Unlike manual spray-on coatings, the molten zinc bath ensures that every nook, cranny, and internal hollow of a structure is coated. This is vital for complex lattice structures or hollow sections where internal corrosion could lead to catastrophic failure.
  2. Unmatched Durability: A typical hot dip galvanized coating can protect steel for over 50 years in rural environments and 20 to 25 years in severe urban and coastal settings. This longevity drastically reduces the “Life Cycle Cost” of a project.
  3. Toughness and Abrasion Resistance: The zinc-iron alloy layers are actually harder than the base steel itself. This makes galvanized structures highly resistant to damage during transport, erection, and service.
  4. Ease of Inspection: Galvanizing is an “honest” coating. If the steel is not chemically clean, the zinc will not react with it. Therefore, a continuous, uniform coating is a guaranteed sign of a high-quality finish.

Addressing the Global Challenge of Corrosion

Corrosion protection steel is a global economic priority. Every year, billions of dollars are lost due to the degradation of infrastructure. In a rapidly industrialising nation like India, the demand for high-quality galvanizing services has surged. As we build more coastal infrastructure and chemical plants, the atmospheric conditions become increasingly aggressive.

Choosing a premium hot dip galvanizing plant ensures that your assets are protected against the “silent killer” of metal. By investing in quality galvanizing at the outset, industries avoid the massive costs of maintenance, shutdowns, and premature replacements that plague non-galvanized structures.

Sustainability and Environmental Impact

In today’s ESG-conscious market, sustainability is key. Hot dip galvanizing is a “green” technology. Zinc is a natural element, and both steel and zinc are 100% recyclable. Furthermore, because galvanized steel lasts for decades without maintenance, the carbon footprint associated with repeated painting or replacement is eliminated. When you choose an advanced hot dip galvanizing plant, you are choosing a sustainable future for your infrastructure.

Why Tanya Galvanizer is Your Trusted Partner

When it comes to protecting your investment, there is no room for compromise. Tanya Galvanizer stands at the forefront of the industry, offering world-class industrial galvanizing solutions tailored to meet the most demanding specifications.

Our facility is equipped with cutting-edge technology to handle diverse structural requirements, ensuring that every piece of steel—regardless of its complexity—receives a uniform, high-quality zinc coating. We understand that in construction and manufacturing, time is money. That is why we combine our technical expertise with efficient turnaround times, ensuring your projects stay on schedule without sacrificing quality.

If you are looking for the pinnacle of galvanizing services in India, look no further. We offer the expertise, capacity, and commitment to excellence your projects deserve.

Secure Your Structure’s Future Today

Don’t let corrosion compromise your legacy. Ensure the safety, durability, and aesthetic appeal of your steel structures with the industry’s best. Visit Tanya Galvanizer today to explore our comprehensive hot dip galvanizing services and give your steel the ultimate shield it needs.

 FAQs

1. What is the lifespan of hot dip galvanized steel? 

In most rural environments, galvanized steel can last over 50 years. In more corrosive industrial or coastal areas, it typically provides 20 to 25 years of maintenance-free protection before any significant rust appears.

2. Is hot dip galvanizing better than painting? 

Yes. While paint is a surface coating, galvanizing creates a metallurgical bond with the steel. It offers better abrasion resistance, protects internal surfaces, and provides sacrificial protection that paint cannot offer.

3. Can any size of steel structure be galvanized? 

Most structures can be galvanized, limited only by the size of the zinc kettle at the plant. Larger structures are often designed in modules or “double-dipped” to ensure complete coverage of the entire piece.

4. How does galvanizing protect the environment? 

Galvanizing is sustainable because it uses natural zinc and is fully recyclable. Extending steel’s lifespan for decades reduces the need for frequent replacements and maintenance-related carbon emissions.

5. Why choose Tanya Galvanizer for your project? 

Tanya Galvanizer offers high-capacity, precision-controlled galvanizing services that meet international quality standards. We provide reliable, cost-effective, and durable solutions for diverse industrial and construction needs across India.

Crash Barrier

Crash Barrier: Essential for Roadway and Construction Site Safety

What is a Crash Barrier?

Crash barrier are engineered safety structures that prevent vehicles from veering off the road or colliding with dangerous obstacles. These barriers are a critical line of defense, keeping cars on course and providing controlled redirection during accidents. Used extensively along highways, bridges, and construction zones, crash barriers protect motorists from hazards like steep slopes, water bodies, and oncoming traffic. By absorbing and redirecting impact energy, crash barriers minimize the risk of severe accidents, safeguarding drivers and roadside structures.

Galvanizing of Crash Barriers

Galvanizing crash barrier involves coating them with zinc to enhance their durability and corrosion resistance. Since outdoor elements like moisture, temperature fluctuations, and pollutants constantly expose crash barriers, galvanizing offers a protective layer that shields the underlying steel from rust and degradation. Hot-dip galvanizing is the preferred method, as it ensures a robust bond between the steel and zinc coating, which is essential for long-lasting, low-maintenance barriers. Galvanized crash barriers withstand extreme weather conditions and maintain structural integrity over time, offering reliable protection across various terrains.

Types of Crash Barrier

Crash barrier come in various designs, each suited to specific applications and environments:

1. Roadside Barrier

 Roadside barriers are placed along roadway edges to prevent vehicles from colliding with obstacles or leaving the   road. These Crash barriers are beneficial in areas with nearby slopes, water bodies, or other dangerous obstructions.

 2. Median Barrier

 Median barriers are located along the center of highways to separate opposing traffic lanes. Engineers specially designed these crash barriers to absorb and dissipate impact energy, which reduces the likelihood of crossover collisions and prevents vehicles from crossing into oncoming lanes.

3.Bridge Barrier

 Bridge barriers are positioned along the edges of bridges to protect vehicles and pedestrians from falling off. They   are typically taller than standard roadside barriers and engineered to withstand higher impact forces, preventing   cars, trucks, and cyclists from crossing over into dangerous areas below.

4.Work Zone Barrier

Workers install temporary structures called work zone barriers to safeguard construction sites and redirect traffic. They can consist of concrete, plastic, or metal and are often modular for easy relocation. Work zone barriers are vital in reducing accidents in high-risk areas where workers and moving machinery are present.

5.Flexible Barrier

Flexible barriers like cable are designed to flex when impacted, absorbing kinetic energy over a longer distance. This  crash barriers prevents light vehicles from going off-road, making it suitable for low-speed zones and areas requiring minimal visual obstruction.

6.Rigid Barrier

Rigid crash barriers, usually reinforced concrete, do not absorb impact energy. Instead, they are intended to redirect  vehicles away from hazards. While these barriers offer maximum containment, they are less forgiving than flexible  options, making them suitable for locations where space constraints limit barrier placement options.

Role of Crash Barriers in Protecting Construction Sites

Crash barrier are integral to construction site safety, serving multiple roles in minimizing accidents and ensuring smooth traffic flow. Construction sites, especially those near roads, are high-risk zones where workers and motorists need protection from potential hazards. As a physical shield, crash barrier create a safe boundary that separates construction activities from moving traffic, reducing the likelihood of worksite intrusions and vehicle collisions.

Crash barriers play a vital role in construction zones by serving as visual markers, guiding drivers safely through temporary detours and lanes. This is especially critical during nighttime or adverse weather conditions when visibility is poor. The enhanced visual cues provided by crash barrier help prevent confusion and keep traffic flowing smoothly. Beyond guidance, crash barriers absorb and redirect impact forces, significantly reducing the severity of accidents near construction areas. This dual function not only ensures a safer environment for motorists but also protects workers and equipment, making them indispensable for construction site safety.

Conclusion

Crash barrier are vital in enhancing road safety and protecting construction sites. Galvanized crash barrier benefit from improved durability and corrosion resistance, making them suitable for various terrains and weather conditions. Whether you need roadside, bridge, or work zone barriers, investing in high-quality, galvanized solutions is essential to ensure optimal safety and longevity.

Tanya Galvanizers is a trusted provider of galvanizing services for crash barriers, delivering reliable solutions tailored to diverse needs. Connect with us today if you’re looking for durable and practical crash barriers for your crash barrier construction project or roadway. We offer top-notch galvanizing services to enhance the lifespan and resilience of your crash barriers. Contact Tanya Galvanizers for all your crash barrier secure a safer environment for drivers and workers alike.

Differences Between Hot-Dipped Galvanization & Pre-Galvanizing

Differences Between Hot-Dipped Galvanization & Pre-Galvanizing

Galvanizing is one of the widely used methods for protecting metals from corrosion. It involves applying a thin zinc coating to a thicker base metal like iron metal. The process helps to shield the metal from the surrounding environment. When a metal undergoes galvanization, it does not experience any corrosion. However, without the zinc coating, the metal remains exposed to the elements and potentially oxidizes and corrodes faster. There are several ways of galvanizing metals, including hot-dipped galvanization and pre-galvanizing.

Hot-Dipped Galvanization vs. Pre-Galvanizing: What Are They?

As the name suggests, in hot-dipped galvanization, experts dip the steel in hot, molten zinc. When the zinc coats the steel, a metallurgical reaction occurs between the iron component of the steel and the hot zinc. The reaction known as the diffusion process occurs when the coating collects perpendicular to every surface, creating a uniform thickness.

When the expert removes the steel from the zinc bath, it reacts with the oxygen in the air to form zinc oxide. It then reacts with carbon dioxide and forms the final protective coating of zinc carbonate. With multi-layered zinc coating and iron-zinc alloy, the steel becomes corrosion-resistant.

Pre-galvanizing, also called mill galvanizing, is another galvanizing process close to ho-dipped galvanizing. However, this process occurs at the very first stage of production. The process takes place at steel mills that have a specific shape. Pre-galvanizing involves a few steps of hot-dip galvanizing, like cleaning the surface, hot zinc bathing, and recoiling.

Key Differences Between Hot-Dipped Galvanizing and Pre-Galvanizing

Differences Between Hot-Dipped Galvanization & Pre-Galvanizing

Application Comparison

Hot-dipped galvanization is an economical choice that you can execute on simple and complex shapes. Experts use it on objects fabricated beforehand and yet not galvanized. The hot-dipped galvanization plays the last step.

On the other hand, a metal requires undergoing pre-galvanizing at the first production stage. It mainly occurs at the mill and later undergoes cutting into size and fabrication.

Coating Comparison

Since the galvanizing process involves the application of a protective coating for the steel and metals, it is essential to consider the coating finish of the two methods of manufacturing galvanized steel.

Coating Thickness

Although both methods result in uniform thickness, the hot-dipped galvanization produces a thicker layer of protection than the other method.

Coating Continually

Hot-dipped galvanizing requires dipping the entire steel and other metals into the molten vat of zinc. The galvanized steel comes with a continuous coating over the surface. On the other hand, pre-galvanizing requires performing before cutting the sheets into perfect sizes and pieces; therefore, the cut edges do not undergo any coating.

Coating Formability

Since the process of pre-galvanizing undergoes at the mills, any coating applied after cutting the metals does not damage the layer. On the other hand, coating formability applied on hot-dipped galvanized steel is not advisable, as it might damage the protective coating of the products.

Coating Appearance

The hot-dipped galvanization forms a bright finish for the galvanized steel, which might or might not be uniform. On the other hand, the pre-galvanizing process produces a uniform bright finish for the coating.

There are numerous differences between hot-dipped and pre-galvanizing processes. Understanding the differences helps in choosing suitable methods and products for different projects.

Difference Between Electro Galvanized Vs. Hot Dip Galvanization Steel

The process of galvanization is extremely crucial when it comes to businesses related metal industry. The main reason being galvanization protects the metal from all natural elements increasing the longevity of the metal. There are usually two types of galvanization that are done to metal they are Electro Galvanization and Hot Dip Galvanization.

In order to understand which galvanization is better for your business, let’s take a look at how each process of galvanization works and what are differences between them!

What is Hot Dip Galvanization?

Hot-dip galvanizing process is one of the most used application of galvanizing process. This process highlights coating a steel or iron object by submerging it into a bath of molten zinc. The bath of molten zinc showcases temperatures around 840°F (449°C). Once removed from the bath, the zinc coating on the iron or steel’s exterior reacts with oxygen in the atmosphere to form (ZnO) Zinc oxide. This Zinc oxide further reacts with carbon dioxide in the atmosphere to form a more compact protective layer known as (ZnCO3) Zinc carbonate. This Zinc carbonate reflects a dull grayish film, which is relatively stable and adheres tightly to the surface of the steel or iron. This results in the hot-dip galvanizing process to create a chemical balance, which ensures that the zinc is chemically bonded to the underlying metal and becomes part of the steel or metal that is being protected through the hot dip galvanizing process.

What is Electro Galvanization?

Electro galvanizing is an electroplating technique used to place a layer of zinc metal on top of a steel surface. It involves immersing a steel component into a solution containing zinc salts followed by the application of electricity to induce an electrochemical reaction on top of the steel. The cold dip approach in comparison to hot dip galvanization process, the electro galvanizing approach provides a thinner coating and more aesthetic appearances method as well. The zinc-rich paints used in cold galvanizing are different from conventional coatings due to the presence of a binding compound. These binders allow the zinc to mechanically bond to the steel to offer an effective level of protection.

Let’s take a look at how each of the process is different from each other.

Comparison Chart between Hot Dip Galvanization and Electro Galvanization

Comparison Chart between Hot Dip Galvanization and Electro Galvanization-Tanya Galvanizers India

In the lights of the differences it is clearly evident how hot dip galvanization is different from electro galvanization process. It is completely based on your organizational requirement you should select your ideal choice of galvanization for your business. To know more about galvanization or for expert advices please get in touch with us.

Why Choose Us

At Galvanizer our team work relentlessly to come up with innovation’s that can deliver you ultimate experience of galvanized products. Our multi-lateral testing and development process ensures delivering our client premiere quality of galvanizing process. With decades of industry experience we offer nothing but the best. We provide assistance in helping you select the best solution for your metal business. To know more on service and business related inquiry get in touch with us.

Tips on Powder Coating on Hot Dip Galvanized Steel

Tips on Powder Coating on Hot Dip Galvanized Steel

Powder coating on hot dip, as can be understood from the name, is a procedure to apply a coating of a special powder on steel that is hot dip galvanized. This particular coating of powder applied on the hot dip galvanizing process provides a significant amount of flexibility as well as a long life. It is precisely the reason as to why powder coating on hot dip galvanized steek has become so popular in recent times. Now, there are three of the major problems that are usually associated with the powder coating on hot dip galvanizing. 

  1. Pin holing of the coating – It is caused by the formation of small air bubbles in the coating at the time of curing or stoving cycle. These bubbles give rise to small craters, and are unsightly. At the same time, it reduces the life and durability of the product. 
  2. Poor adhesion – In the final step of hot dip galvanizing process, water quenching is involved usually in a weak dichromate solution. If it is not done appropriately, the adhesion of the powder coating tends to be quite poor, and hence ineffective. 
  3. Incomplete curing – The powder coatings are thermosetting resins that cross link to their ultimate organic form when they are maintained at a temperature of 180 degrees Celsius for approximately ten minutes. The curing overs are designed to do the task efficiently. But if the curing is incomplete, the coating would not be perfect. 
Read more: Hot Dip Galvanized Steel

To get rid of these problems, it is of immense importance to follow a few of the most essential tips in this regard for perfect powder coating on hot dip galvanized steel. 

  1. Carry out the hot dip galvanizing process but do not chromate or water quench
  2. All the drainage spikes as well as the surface defects should be mandatorily removed
  3. Powder coating should be done within a maximum of twelve hours after galvanization
  4. Precautions need to be taken to make sure that the surfaces do not get wet, and ensure that the item is not left outside
  5. It is essential to keep the surface clean without any kind of contamination before the application coating 
  6. In case any contamination, the surface should be necessarily cleaned with compatible detergent or solvent before the application of powder coating
  7. It is ideal to pre treat the hot dip galvanized steel with zinc phosphate to make sure that the highest adhesion is obtained, and most importantly the surface should be perfectly clean before the treatment
  8. Before the application of powder coating, the work should be pre heated
  9. Finally, it is to be made sure that curing is perfect and the correct curing should be checked by solvent testing

Keeping all these tips in mind would make sure that the intended results are obtained. So, at any point of time, you are search of the best hot dip galvanizing services in Vadodara, Prashant Galvanizers would undoubtedly be the best option. We are a leading hot dip galvanizing service provider to make sure to provide the users with premium quality services. Moreover, it is recommended to choose a trusted, reputed, and reliable service provider like Prashant Galvanizers if you wish to get the best solutions in this regard.

 

Hot Dip Galvanizing or Zinc Rich Primers for surface protection-Tanya Galvanizers

Which is a better option Hot Dip Galvanizing or Zinc Rich Primers for surface protection

There are a number of methods by which steel is protected from corrosion. One of the most effective methods of effectively protecting steel from corrosion is galvanic protection. This protection simply works by covering the surface of the steel with a metal which will preferentially corrode and protect the steel at the time when it comes with contact with any electrolyte such as water.

All of the metals and their alloys have a characteristic called the electrochemical potential. Now, when the metals that have a high electrochemical potential comes in contact with a metal having low electrochemical potential tend to corrode. This is the reason as to why galvanic coatings are applied to steel since these galvanic coatings have a higher electrochemical potential as compared to steel and as a result the base metal is saved from corrosion whereas the coating is corroded.

Methods of Galvanic Protection

  • There are a number of ways by which galvanic protection is offered to steel for preventing it from corrosion. The most common methods used in this regard are as follows.

Hot Dip Galvanizing Services

Hot Dip Galvanisation

  • Galvanising refers to the method of application of a continuous layer of zinc to the surface of steel. In the method of hot dip galvanisation, the steel is dipped into a bath of molten zinc which allows zinc to adhere to the surface of steel.
  • This process involves a lot preparation of the surface of the steel and a number of other steps for the process to be effectively completed.

Zinc Rich Primers –

  • Zinc rich primer is basically a liquid applied coating on the steel that has a microscopic spheres of solid zinc metal that are held together with a resin.
  • There are a number of options for the types of resins to be used. The most commonly used resin for the zinc rich primer is epoxy resin. The coating so formed over the steel help in the prevention of corrosion.
  • Now, it can be clearly understood that both of these methods offer galvanic protection of the base metal steel from being affected by corrosion so as to keep them functional for a longer duration of time.

A Comparison Between the Two Methods

A comparison between the two methods that is hot dip galvanisation and zinc rich primers would prove which of the process is a better one.

  • The service life of hot dip galvanisation is more as compared to the inorganic zinc rich primer which means when subjected to the same conditions, hot dip galvanisation offers a longer protection as compared to the inorganic zinc rich primer.
  • Thus, it is clear that hot dip galvanisation offers more galvanic protection as compared to the zinc rich primers in the same environment.
  • Both hot dip galvanising as well as zinc rich primers can be used with a top coating but many times there is a top coating used for additional protection for the preservation of the galvanic layer and for aesthetics along with the protection of the zinc layer at the time when the service conditions are acidic or alkaline in nature.
  • Now, zinc being amphoteric in nature does well in the pH neutral environments but quickly deteriorates in case of extremely low or high pH levels.
  • This is exactly where surface preparation comes into play. Here, hot dip galvanisation has a better prepared surface without any gaps.
  • But in case of top coating of the zinc rich primers, it needs to be carefully done to release the air in the gaps for properly
  • sealing the surface which is not needed in hot dip galvanisation. Thus, hot dip galvanisation is a better option as compared to the zinc rich primer.

Since, hot dip galvanisation offers a better solution, it is readily used in the crash barriers, cable trays, earthing material and a number of others. But at any point of time, you are looking for hot dip galvanizing services in Gujarat, make sure you choose a trusted and a reputed one for the best solutions. Tanya Galvanisers would undoubtedly be a very good choice in this regard. With its several years of experience in the field of hot dip galvanisation, you can be assured of getting best of the services.

Get in touch with us call: +91 8000842648