T BAILEY INC. has a certified and endorsed coatings department at our fabrication facility. Established in 2003, it occupies an expansive 14,000-square foot dedicated area. Our expert, the goal-oriented team is proficient at metallizing a variety of fabricated steel parts, pieces, and structures using advanced technology, including many proprietary innovations.
What is Metallizing?
Metallizing uses two zinc, aluminum, or other metal electrically charged wires of opposite polarity. On contact, they atomize in a molten arc. This spray is propelled onto a substrate using compressed air.
A metalizing coating has advantageous characteristics:
- Size: Metallizes large structures that don’t fit in a galvanizing kettle.
- Time: Instant solidification allows rapid return to service.
- Location: Portable metalizing equipment coats immovable structures in situ, such as bridges or marine constructions.
- Flexibility: Metalizing protects, adds anti-slip/non-skid enhancement, repairs surfaces, and is easily top-coated with color.
- Durability: Metalized coatings from light to heavy military grade withstand all weather conditions.
Benefits of the Metallizing Process
When you partner with T BAILEY INC.’s metalizing services, you’ll enhance your steel structures and enjoy many cost-saving benefits.
- Enhanced corrosion protection: Rust diminishes the strength and appearance of structures until they become unsafe and unsightly. Metalizing steel inhibits rust and boosts lifespan by approximately 20 years.
- Increased durability: Metalizing has superior adhesion, resisting cracking, flaking, peeling, and blistering.
- Providing electrical conductivity: Most non-metallic substances are electrically non-conductive. Metalizing provides a pathway for electric current.
- Greater weather resistance: Metalization forms a shield against harsh weather conditions and environments.
- Reduced maintenance costs: Metalized coatings don’t require constant repainting or upkeep.
What Are the Various Metallization Processes?
- Vacuum metallizing vaporizes the coating inside a vacuum chamber. The vapor condenses on the substrate.
- Hot-dip galvanizing involves immersing steel in liquid zinc in a galvanizing kettle. This produces a layered coating of zinc and zinc/iron alloy.
- Zinc spraying uses a heated gun to melt and spray zinc onto the substrate using combustion or compressed air.
- Thermal spraying techniques use electrical plasma or combustion to spray melted or heated material onto a surface.
- Cold spraying uses a supersonic gas jet to accelerate unmelted metal powder onto the substrate. The powder particles undergo plastic deformation and adhere to the surface.
Different Types of Coating Systems
T BAILEY INC. performs:
- GalvanizingSteel is hot-dipped in a galvanizing kettle containing ASTM B6 graded zinc, producing a multi-layered coating of zinc/zinc-iron alloy. After cooling, steel may undergo post-treatment enhancements. The uniform coating is corrosion-resistant and affordable but limited by kettle size. Regalvanizing is inadvisable.
- MetalizingTwo electrically charged zinc, aluminum, or other wires of opposite polarity are fed through a metalizing machine. On contact, an atomized molten arc is propelled and deposited using compressed air. Surface preparation requires abrasive blasting for a sharp, angular profile. Metalizing meets industry standards SSPC, AWA, & NACE. It is superior to galvanizing.
Considering Different Coating Systems
Metalizing and galvanizing are two coatings systems that can be applied along with a coating as part of a duplex coating system. There are advantages and disadvantages to both systems that should be considered when determining which is best for your project. For more information about our metallizing services, contact T BAILEY, INC. today.
What Is Galvanizing?
Hot-dip galvanizing is the process of immersing steel in a zinc bath to produce a corrosion resistant, multi-layered coating of zinc-iron alloy and zinc metal. The galvanizing kettle contains zinc specified to ASTM B6, which specifies the grade of zinc.
On occasion, other metals are added to the zinc in accordance with the desired coating system. Once removed from the kettle it is removed to cool. Depending on the coatings system, there might be other post-treatment steps to enhance the galvanizing coating. This process creates a uniform thickness throughout and creates a long-lasting corrosion protection at a reasonable cost.
The process is inherently simple but comes with limitations. Since the galvanizing process involves dipping the steel into multiple kettles, there are size restrictions on what can be processed. Depending upon the final size of your project, metalizing or partial galvanizing might be a better solution. Additionally, once an item has been galvanized it is difficult to regalvanize it down the road should repairs be necessary.