Sandblasting, Coating and Shop Primer

Industrial Surface Preparation & Protective Coating Services

Industrial surface preparation and protective coating services turn raw steel into durable, corrosion-resistant structures. From sandblasting and abrasive blasting through shot blasting, metal painting, protective coating, metal surface coating and shop primer, we engineer complete systems for fabrication shops, plants and project sites.

Our workflows integrate upstream cutting operations such as CNC laser cutting, CNC plasma cutting and guillotine shearing, as well as downstream processes like galvanizing coating and site touch-ups. This page explains our capabilities in sandblasting, abrasive blasting, shot blasting, metal painting, protective coating, metal surface coating and shop primer, along with FAQs and procurement guidance.

Sandblasting

Industrial surface preparation starts with a consistent, controllable cleaning profile. Our sandblasting services combine process reliability with measurable surface roughness to maximize coating adhesion.

Whether you need industrial sandblasting at scale or targeted metal sandblasting for complex parts, we engineer the sandblasting process for the substrate and coating system. For beams, plates, tanks and bridges, steel sandblasting removes mill scale and corrosion efficiently.

When structural integrity and coating life matter, sandblasting for steel structures is paired with in-line inspection and cleanliness grades (e.g. Sa 2½ equivalents). After preparation, many projects proceed directly to sandblasting and painting for time-sensitive turnarounds or select a primer-first route such as shop-applied or field-applied sandblasting coating solutions.

Selecting a professional sandblasting company ensures uniformity across large surface areas. As a sandblasting partner, we calibrate media, nozzle distance and travel speed to achieve repeatable results and minimize rework. For turnkey delivery, a certified sandblasting contractor can integrate logistics, documentation and coating compatibility checks into one package.

Abrasive Blasting

While sandblasting is a popular subset, abrasive blasting services broaden the toolkit by allowing tailored media – from garnet to steel grit – aligned with part geometry and coating specs.

Our industrial abrasive blasting line standardizes parameters for repeatable performance across batches. For heavier contamination, abrasive blasting steel applications leverage higher impact energy without over-profiling; for thinner parts, abrasive blasting metal programs prioritize profile control to prevent warping.

Correct abrasive blasting surface preparation enhances primer wet-out and reduces underfilm corrosion risk. Our abrasive blasting equipment fleet features pressure control, reclaim loops and media cleanliness monitoring, supporting audits and third-party inspections.

Whether you need a project-based or framework approach, qualified abrasive blasting contractors deliver end-to-end execution – often combining abrasive blasting and coating in the same workflow to compress downtime.

Shot Blasting

For plate pre-treatment lines and beam processing, shot blasting services deliver high throughput and stable profiles. Our industrial shot blasting systems use wheel-blast technology to accelerate steel shot or grit across the work surface, achieving deep, consistent cleaning prior to coating or fabrication.

In heavy construction, steel shot blasting removes oxides and old coatings rapidly, while metal shot blasting addresses mixed assemblies with varying thicknesses. The controlled shot blasting process is often the first step before primers and subsequent layers.

For bridges, plants and ship blocks, shot blasting for steel is tied to cleanliness grades and profile measurements. Where schedule certainty is critical, experienced shot blasting contractors sequence shot blasting and painting to minimize exposure windows.

Selecting a reliable shot blasting company ensures traceable media condition, dust extraction and operator qualification. Our surface preparation shot blasting programs span from small batches to continuous lines.

Metal Painting

After preparation, coatings must convert a clean surface into durable protection. Our metal painting services cover solvent-borne, waterborne and high-solids technologies.

In facilities that demand uptime, industrial metal painting offers predictable cure schedules and fewer shutdowns. For structural fabrication, steel painting concentrates on barrier protection and mechanical resistance; for lighter alloys, aluminum painting prioritizes adhesion promoters and film flexibility.

Bespoke appearance specifications are handled in our custom metal painting workflow, while professional metal painting standards govern DFT (dry film thickness), holiday testing and repair protocols.

Whether you tender for EPCs or direct end users, choosing the right metal painting company or metal painting contractor reduces lifecycle cost and warranty claims. On multi-coat systems, metal painting and coating sequences are validated to ensure durable performance throughout the asset life.

Protective Coating

When exposure includes salt spray, chemicals or abrasion, protective coating services extend beyond aesthetics – they are the front line against degradation.

Our industrial protective coating portfolio includes barrier, inhibitive and sacrificial mechanisms tailored to operating environments. For beams, tanks and offshore modules, steel protective coating selections balance corrosion class, maintenance intervals and application method.

High-performance chemistries such as epoxy protective coating for chemical resistance and zinc protective coating (zinc-rich) for galvanic protection are specified according to design life, often in combination with galvanizing for long-term systems.

A certified protective coating company coordinates blasting, climate control and cure schedules, while experienced protective coating contractors execute consistent DFT and edge retention. For plants and bridges, protective coating for steel structures is engineered to meet inspection hold points and documentation needs.

Metal Surface Coating

Beyond liquid paints, metal surface coating services deliver tailored finishes for function and branding. Our industrial surface coating capabilities include pretreatment, conversion layers and film builds matched to end-use.

For construction and energy, steel surface coating focuses on resilience and compatibility with field repairs; for transportation and architectural elements, aluminum surface coating may emphasize UV stability and smoothness.

Powder technology offers efficient cure profiles and robust films – our powder coating metal surface line covers single- and multi-coat schemes. Anti-rust metal surface coating strategies integrate primers and sealers to stabilize bare steel before final painting or galvanizing.

Each metal surface coating process is documented for traceability, and working with a qualified metal surface coating company accelerates approvals and audits.

Shop Primer

Factory-applied primers protect steel between fabrication, transport and final painting. Our shop primer solutions reduce flash rust and rework, enabling smoother downstream assembly.

General-purpose shop primer paint secures short-term protection; for structural items, steel shop primer specs are tied to weldability and cutting behavior. In marine fabrication, shipbuilding shop primer supports block turnover and staging while guarding against underfilm corrosion.

System selection covers epoxy shop primer for chemical resilience and zinc shop primer for sacrificial protection. Fabricators often prefer weldable shop primer to limit fume and porosity risk during joining. For tight schedules, fast-cure shop primer coating minimizes handling delays.

Correct sequencing – surface prep, surface preparation shop primer and topcoats – secures coating performance. Where takt time matters, fast-drying factory-applied shop primer streamlines production and stabilizes quality across shifts.

Sourcing is straightforward: work with a qualified shop primer supplier or OEM-aligned shop primer manufacturer that certifies batch consistency and weldability.

FAQs & Procurement Notes

What drives the selection between sandblasting, abrasive blasting and shot blasting?

Substrate condition and throughput needs. Sandblasting services excel at versatile work; abrasive blasting services tune media to geometry and cleanliness targets; shot blasting services offer high-volume, consistent profiles on plates and beams. In each case, the engineered sandblasting process, abrasive blasting process or shot blasting process dictates adhesion, DFT consistency and lifecycle cost.

When should shop primer be specified?

Wherever material will be exposed between fabrication and final painting. Shop primer paint (including epoxy shop primer and zinc shop primer) provides interim protection. For weld-heavy sequences, choose a weldable shop primer. For marine logistics, shipbuilding shop primer and marine shop primer variants help maintain integrity until topcoating.

Which coating stack fits corrosive sites?

Combine zinc-rich or inhibitive primers with high-build epoxies and UV-stable finishes. Our protective coating services and professional protective coating approach tailor solutions to your C-class exposure, often in coordination with galvanizing, to ensure long-lasting performance.

How do I source and verify materials?

Engage a certified protective coating company and metal painting company, confirm WPs/ITPs and request traceable DFT logs. For materials, order through a shop primer supplier or shop primer manufacturer with weldability and salt-spray data.

Contact & Quote

Plan your scope with our engineering team: sequence sandblasting, abrasive blasting or shot blasting with metal painting, protective coating, metal surface coating and shop primer. We provide method statements, inspection plans and warranty-backed systems designed for durable steel protection.

Surface preparation and coating can be aligned with upstream cutting (laser, plasma, shearing) and downstream galvanizing to create a complete protection chain for structural steel and fabricated components.

Need Engineered Surface Preparation & Coating?

Share your steel grades, dimensions, exposure class and target service life to receive a tailored proposal for blasting, coating and shop primer – including system design, inspection scope and logistics options.

Contact HL Metal – Sandblasting, Coating & Shop Primer

Galvanizing Coating

Galvanizing coating is a surface treatment process that applies a protective layer of zinc onto steel or iron surfaces. The most common method is hot dip galvanizing, where the metal is dipped into molten zinc, creating a metallurgical bond that results in a durable galvanized coating. This zinc layer acts as a protective barrier, shielding the underlying steel from moisture, oxygen, and other corrosive elements.

This process provides both barrier and cathodic protection. If the galvanized coating is scratched, the zinc corrodes sacrificially, protecting the base metal — a key advantage compared to other protective coatings for steel.

In the world of metal fabrication and steel protection, galvanizing coating stands out as one of the most effective and widely used methods to prevent corrosion and extend the life of steel products. Whether you are involved in construction, automotive manufacturing, infrastructure projects, or industrial applications, understanding the benefits and processes of hot dip galvanizing coating is essential for ensuring durable and long-lasting steel performance.

This comprehensive guide explores the galvanizing coating process, its types, advantages, applications, and why it remains the preferred choice over other corrosion resistant coatings.

Types of Galvanizing Coating

There are several types of galvanizing coating techniques, including:

  • Hot Dip Galvanizing (HDG): The steel is immersed in molten zinc at approximately 450°C. This is the most common and durable galvanizing coating process used in industry.

  • Electro-galvanizing: Also known as electroplating, zinc is applied using an electrical current. It results in a thinner coating, ideal for applications requiring precise surface finish.

  • Mechanical Galvanizing: Zinc powder is mechanically bonded to steel parts. This method is often used for small parts and fasteners.

Each method offers distinct advantages in terms of coating thickness, corrosion resistance, and cost. However, hot dip galvanizing coating remains the most popular due to its superior durability and coverage.

Advantages of Galvanizing Coating

Superior Corrosion Resistance

One of the primary benefits of a galvanizing coating is its excellent resistance to corrosion. Zinc acts as a barrier against moisture and corrosive agents. Even when scratched, the zinc layer sacrifices itself to protect the steel beneath.

Long Service Life

Structures coated with hot dipped galvanized coating can last up to 50 years or more with minimal maintenance. This longevity reduces replacement costs and downtime for repairs.

Complete Surface Coverage

Unlike paint or other coatings, galvanizing coats every exposed surface, including edges, corners, and recesses. This comprehensive protection is crucial for complex steel parts and assemblies.

Cost-Effectiveness

While the initial cost of galvanizing might be higher than simple painting, the life-cycle cost is much lower. The reduced need for repairs and repainting over decades makes galvanizing economically advantageous.

Environmental Benefits

Modern galvanizing plants implement eco-friendly processes with strict emission controls. Zinc is a recyclable material, making environmentally friendly galvanizing a sustainable choice.

Applications of Galvanizing Coating

The versatility of galvanized steel coating makes it suitable for numerous industries:

  • Construction: Structural beams, steel frameworks, roofing sheets, and reinforcing bars.

  • Automotive: Frames, exhaust components, and undercarriages benefit from corrosion-resistant coatings.

  • Infrastructure: Bridges, guardrails, electrical transmission towers, and street furniture.

  • Agriculture: Fencing, silos, and irrigation equipment.

  • Industrial Equipment: Machinery parts exposed to harsh environments.

Galvanizing Coating Process Steps

Understanding the galvanizing coating process steps helps in appreciating the quality and durability of the final product:

  1. Surface Preparation: The steel is cleaned to remove oil, dirt, rust, and mill scale. This usually involves degreasing, pickling in acid baths, and rinsing.

  2. Fluxing: The cleaned steel is dipped into a flux solution (usually zinc ammonium chloride) to prevent oxidation before galvanizing.

  3. Galvanizing: The steel is immersed in molten zinc at around 450°C. The reaction forms a metallurgical bond between zinc and steel.

  4. Cooling and Inspection: After coating, the steel is cooled and inspected for thickness, coverage, and defects.

Comparing Galvanizing Coating to Other Protective Coatings

When deciding on a corrosion protection method, it’s essential to compare galvanizing vs painting or powder coating:

  • Durability: Galvanizing lasts significantly longer, especially in outdoor or harsh environments.

  • Coverage: Galvanizing provides full 360-degree protection, including edges and hidden surfaces.

  • Maintenance: Painted surfaces require regular maintenance and repainting; galvanized surfaces require minimal upkeep.

  • Cost: Although upfront costs may be higher, galvanizing is more cost-effective over the steel’s lifecycle.

Custom Galvanizing Coating Solutions

Different projects require different coating thicknesses and finishes. The galvanizing coating thickness can range from 45 to over 100 microns, depending on environmental exposure and customer specifications.

Specialty galvanizing coatings can also include:

  • Pre-galvanized steel: Steel galvanized before fabrication, useful for controlled coating thickness.

  • Post-fabrication galvanizing: Suitable for large structures and assemblies.

  • Dual coatings: Combining galvanizing with paint or powder coatings for enhanced protection and aesthetics.

Industry Standards and Inspection

The quality of galvanizing coating is governed by international standards such as:

  • ASTM A123 / A123M (USA)

  • ISO 1461 (International)

  • BS EN ISO 1461 (Europe)

Inspections often include coating thickness measurement, adhesion testing, and visual checks to ensure compliance.

In summary, galvanizing coating remains the gold standard for corrosion protection of steel products worldwide. With its proven durability, cost-effectiveness, and comprehensive protection, it serves a critical role in construction, automotive, infrastructure, and industrial applications.

Choosing the right galvanizing coating supplier and process ensures your steel components meet the highest standards of quality and longevity.

Galvanized is the process of applying a zinc coating to metal surfaces—primarily steel or iron—to protect them from rust and corrosion. Zinc reacts with the base metal to form a protective barrier that prevents oxidation. This process is especially preferred for extending the service life of metal components exposed to outdoor environments.

Galvanization enhances the durability of metal by forming a zinc layer over its surface, making it more resistant to environmental effects.

Types of Coating

1. Hot-Dip 

Description: The metal is submerged into a bath of molten zinc at around 450°C. Zinc adheres to the surface, forming a robust, protective layer.

  • Advantages:
    • High corrosion protection
    • Thick and durable zinc layer
    • Long-lasting in outdoor and harsh environments
  • Applications: Construction, automotive, steel industry, bridges, outdoor structures

2. Electro

Description: An electric current deposits zinc onto the metal surface in an acidic solution, forming a thin, smooth layer.

  • Advantages:
    • Thin, uniform, and shiny surface
    • Ideal for delicate materials
    • Low cost and fast process
  • Applications: Electronics, automotive parts, indoor and decorative metalwork

3. Continuous Hot-Dip 

Description: Metal strips or sheets are continuously fed through molten zinc in a production line.

  • Advantages:
    • Suitable for high-volume production
    • Efficient and fast
    • Compatible with various sizes
  • Applications: Automotive industry, construction-grade profiles and sheets

4. Flame 

Description: Zinc is heated using a flame and applied to the metal surface as vapor or molten droplets.

  • Advantages:
    • Fast application
    • Effective for large metal structures
  • Applications: Steel structures, pipes, heavy construction elements

5. Mechanical 

Description: Zinc powder and glass beads coat metal parts in a rotating drum through mechanical friction.

  • Advantages:
    • Non-electrolytic, dry process
    • Suitable for small, precise components
  • Applications: Automotive components, electronics, small accessories

6. Zinc-Iron (Zinc-Fe)

Description: A zinc-iron alloy coating is formed by blending zinc and iron during the galvanized process.

  • Advantages:
    • Durable and long-lasting coating
    • Enhanced corrosion resistance for steel
  • Applications: Steel pipes, construction materials, iron and steel industry
  • Corrosion Protection: Prevents oxidation and rusting
  • Long Service Life: Withstands weather and chemical exposure
  • Low Maintenance: Zinc acts as a durable protective barrier
  • Environmental Durability: Ideal for outdoor use due to high resistance

Conclusion

Galvanization is a durable and economical protection method commonly used in the metalworking industry. The ideal galvanization technique depends on the application area, desired coating thickness, and material characteristics.

Galvanized Steel Sheet Plate

Galvanized steel sheet plates are coated with zinc to prevent corrosion, which is a common issue in metals. The zinc layer—referred to as galvanizing—can be applied to nearly all wet or humid surfaces, making it an ideal choice for environments exposed to moisture. Today, galvanized sheet plates are widely used in damp or wet areas due to their high resistance to such conditions. Zinc, as the main component of the galvanizing process, serves as a protective barrier against external threats, preventing potential damage to the metal surface.

The use of galvanized sheet plates is highly common across various industries. Thanks to their durability and practicality, they are often preferred by production managers and factory operators. Galvanized sheet plates enhance the resistance of manufactured products, significantly increasing their performance and longevity.

In iron manufacturing, moisture is a major concern. Zinc helps protect the iron from potential damage caused by wet surfaces, effectively preventing rust and corrosion. Therefore, galvanized sheet plates are especially popular in the production of components where corrosion is a primary issue. Products manufactured with galvanized sheet metal tend to have a longer shelf life, due to the robust and reliable nature of the zinc coating.

Galvanized sheet plates contribute to the production of higher-quality, longer-lasting products. At HL Metal Demir Çelik Sanayi, we offer the best quality galvanized sheet plates at competitive prices. You are welcome to contact us to learn more about our products and benefit from our expert support team’s guidance.

Galvanizing sheet metal provides multiple advantages—it creates a moisture-resistant barrier that protects the product from internal or external humidity. Zinc’s properties make it particularly effective in environments prone to dampness, as it significantly improves corrosion resistance. The continuous galvanizing process applied during sheet metal production ensures durability and longevity. Even when exposed to moisture, the galvanized layer prevents premature deterioration, allowing products to retain their structural integrity for years

HL Metal Steel Service Center

Precision, Performance, Partnership

HL Metal Steel Service Center is a leading provider of advanced steel processing solutions, offering a wide range of high-quality flat and long steel products tailored to meet the demands of diverse industries. With decades of experience, modern equipment, and a commitment to customer satisfaction, HL Metal has become a trusted partner for steel distribution, cutting, slitting, and custom fabrication services.

Our Services

At HL Metal, we go beyond simply supplying steel. We provide end-to-end steel service solutions including:

  • Slitting and Cut-to-Length Services
    Precise slitting and lengthwise cutting for coils and sheets up to various thicknesses and widths.

  • Sheet Metal Cutting
    Hydraulic and CNC shearing for custom sheet sizes in galvanized, cold-rolled, hot-rolled, or stainless materials.

  • Recoiling & Packaging
    Recoiling and packaging services tailored to export and local market logistics.

  • Surface Treatments
    Oil coating, protective film application, and edge protection for added durability and corrosion resistance.

  • Logistics & Just-in-Time Delivery
    Fast delivery options and stock management support to streamline your production.

Products We Offer

We specialize in a wide range of steel products, including:

All products meet international standards such as EN, ASTM, and DIN, and are available in various grades and surface finishes.

Industries We Serve

HL Metal delivers steel solutions to a wide spectrum of sectors, including:

  • Construction & Infrastructure

  • White Goods & Home Appliances

  • Automotive & Transportation

  • HVAC & Mechanical Systems

  • Furniture & Interior Design

  • Energy & Agricultural Equipment

Our flexibility and production capabilities make us the preferred steel service partner for OEMs, manufacturers, and steel wholesalers.

Why Choose HL Metal?

  • State-of-the-art Machinery – Precision slitting, leveling, and cutting lines

  • Certified Quality Control – ISO-compliant testing and traceability

  • Experienced Team – Skilled technicians and engineers on-site

  • Strong Supply Chain – Partnerships with mills and transport companies

  • Customer-Centric Approach – Customization, quick response, and reliability

International Trade & Export Services

Located near key ports and industrial zones in Turkey, HL Metal is strategically positioned for international trade. We offer export-compliant packaging, document handling, and container loading services to support global partners across Europe, the Middle East, North Africa, and beyond.

Let’s Build Together

Whether you need bulk steel products, cut-to-size sheet metal, or just-in-time delivery for your project, HL Metal Steel Service Center is ready to deliver with precision, speed, and consistency.

Contact us today for quotations, technical specifications, or to schedule a factory visit.

Affordable Galvanized Sheet Metal – İstanbul, Turkey Regions

If you are looking for cost-effective solutions without compromising on quality, you can benefit from our galvanized sheet metal products in İkitelli and Esenyurt. With affordable pricing options and various zinc coating alternatives, galvanized sheet metal offers you the advantage of durability and long service life—often up to 50 years depending on conditions.

Galvanized sheet plates, produced through hot-dip or electro-galvanizing processes, are known for their high resistance and corrosion protection. They are ideal for a wide range of projects requiring strong and long-lasting materials. The price of galvanized steel sheet plates varies depending on the dimensions, thickness, and specific requirements of each project.

At HL Metal, you can find everything you need directly through our website. Whether you are looking for specific measurements or competitive pricing, we are here as your reliable supplier. With our commitment to 100% customer satisfaction, you can contact us by phone anytime for detailed information about galvanized metal production, technical specifications, or quotation requests.