Zinc Flake Coating, Hot Dip Galvanizing, and Zinc Plating are three different methods of applying zinc to the surface of a metal substrate for corrosion protection. Here’s a brief difference between them:
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14
May
Zinc Flake Coating: The Future of Corrosion Protection in Delhi NCR
Zinc flake coating is a corrosion protection technology that involves applying a layer of zinc flakes to a substrate surface, typically through a dip-spin or spray application process. This coating provides excellent corrosion resistance by forming a protective barrier against moisture, chemicals, and environmental factors that can cause corrosion. Zinc flake coatings are widely used in various industries, including automotive, construction, renewable energy, and infrastructure, to enhance the durability and lifespan of components, machinery, and structures. Key benefits of zinc flake coating include its high level of corrosion resistance, uniform coverage, and ability to maintain mechanical properties even under extreme conditions. Additionally, zinc flake coatings are considered environmentally friendly due to their low environmental impact and compliance with regulatory standards.
➲ During the Design of Everything from Mechanical Assemblies to Buildings, Corrosion Protection is a Key Consideration.
➲ Even the Smallest Components, Such as Nuts and Bolts, must be Adequately Protected from Corrosion. Otherwise, the Risk of Compromising the Integrity of the Entire System or Structure.
➲ ZINC FLAKE COATING (GEOMET®) is an Ideal Solution for these Applications.
➲ Because the Film is Extremely Thin-Only about 8 Microns – IT Wont Negatively Affect the Optimal Fit Between Bolts and Nuts
Advantages of Zinc Flake Coatings
➼ Non – pollution, environmentally responsible GEOMET® is a water-based coating technology completely free from chromium.
➼ Outstanding resistance to the salt spray test and cyclic corrosion test.
➼ Superb resistance to heat and corrosion.
➼ Superior prevention of galvanic corrosion of aluminum.
➼ No concern for hydrogen embrittlement.
➼ Excellent coating properties.
➼ UV Resistance & Fluid Resistance.
20
Apr
Next-Generation Coatings: Geomet 321 Leads the Way in Performance and Reliability
GEOMET® 321 is applied to protect fasteners and many types of metallic parts from corrosion and is used in many industries. It can be combined with PLUS®, DACROLUB® or GEOKOTE® topcoats to provide a very broad range of friction coefficients. It is the most widely used product in zinc flake technology.
• Thin dry-film, non-electrolytic
• Water-based chemistry
• Passivated zinc and aluminium flakes in a binder, patented chemistry
• Chrome free alternative to DACROMET® 320
• Metallic silver appearance
Characteristics and performance*
•The coefficient of friction can be adjusted to targeted values ranging from 0.06 to 0.20
(ISO 16047) with NOF METAL COATING GROUP’s selected topcoats
• It can be used with or without topcoat
• No hydrogen embrittlement
• Excellent assembly and multi-tightening behavior (with lubricated topcoat)
• Good mechanical damage (test method D24 1312, USCAR 32) and chemical resistance to VDA 621-412 test
• Performance maintained at elevated temperatures (up to 300°C)
• Paintable coating
• Electrical conductivity for most application processes
• Bimetallic compatibility with aluminum
High corrosion resistance*
Coating Weight
> 24 g/m2
> 24 g/m2 +
topcoat
> 36 g/m2
Salt Spray Test
(IS0 9227/ASTM B117)
> 240 hours without white rust
> 720 hours without red rust
> 720 hours without red rust
> 1000 hours without red rust
Cyclic Test
4 cycles ACT
60 cycles GMW14872
60 cycles SAE J2334
* Results may vary depending on substrate, geometry of parts and type of application processes
Application Process:
GEOMET® 321 can be applied by Dip-Spin, Spray, Dip-Drain-Spin using bulk or rack
Health and Safety:
• Aqueous dispersion
• Complies with REACh
• Complies with the 2011/65/EU and (EU) 2015/863 directives
Among our worldwide specifications:
• BMW (GS 90010)
• CHRYSLER (PS-5873, PS-9666)
• DAIMLER (DBL 9440)
• FIAT (Capitolato 9.57513)
• FORD (S438)
• GENERAL MOTORS (GMW3359-GMW14)
• IVECO (18-1101)
• PORSCHE (PTL 7539)
• RENAULT (01-71-002)
• RENAULT Trucks (01-71-4002)
• VOLKSWAGEN (TL245)
• VOLVO Cars (VCS 5737,29)
• ALSTOM (DTRF 150213)
• BOMBARDIER (BT/CE-WN30-02)
• CATERPILLAR (1E1675G)
• JOHN DEERE (JDM F13)
• KNORR BREMSE (N12005)
International Standards:
EN ISO 10683 – Fasteners: non-electrolytic zinc flake coatings
EN 13858 – Non-electrolytic zinc flake coatings on iron and steel parts
ASTM F1136 / F1136 M – Zinc/Aluminum Corrosion Protective Coatings for Fasteners
16
Apr
GEOMET® 720 Coating Sets New Standards for Corrosion Resistance
FUNCTIONALITIES
Corrosion protection
GEOMET® 720 alone or in combination with our range of topcoats passes the most
severe corrosion cyclic tests. It protects parts from rust even after mechanical damages,
such as stone chipping, thanks to its self-healing property. It also ensures bimetallic
compatibility with aluminum alloys. Its nominal thickness can be adjusted (from 6 to 15
µm and from 1 to 3 layers depending on the type of application process) to meet the
expected performance.
720-2000 h
(ISO 9227/ASTM B117)
* Results depend on substrate, geometry of parts and type of application processes.
Temperature resistance
Performances maintained up to 300°C.
Static friction
Static friction coefficient > 0.20.
Electrical properties
Conductive and offers perfect galvanic properties to avoid bi-metallic corrosion in most of industrial assemblies (cast iron, carbon steel and aluminum alloys).
Paintability
Excellent surface conditions for paints or additional coatings
No hydrogen embrittlement
Implemented via non-electrolytic application processes. This avoids the hydrogen embrittlement phenomenon that causes cracking of metals.
* COF is not measured only on base coat and not recommended.
APPLICATION
Processes
GEOMET® 720 is applied via bulk dip/spin, rack dip/spin, spray or electrostatic spray.
This variety of processes allows to coat all types of parts, even those requiring partial
coating, or with recessed and hollow surfaces. Moreover, they are non-electrolytic and
thus avoid the phenomenon of hydrogen embrittlement which causes cracking of metals.
TECHNOLOGY
Waterborne zinc flake
GEOMET® 720 is a patented technology composed of passivated zinc and aluminum
flakes in a binder. It has been developed to comply with the highest industrial
requirements and regulations regarding environment, health and safety. It is waterbased, chrome-free and nonylphenol-free.
Compliant with
REACH – Registration, Evaluation, Authorization and restriction of Chemicals
2011/65/EU and (EU) 2015/863 – Directive of the European Parliament on the restriction of
the use of certain hazardous substances in electrical and electronic equipment
ASTM F1136 / F1136 M – Zinc/Aluminum Corrosion Protective Coatings for Fasteners
EN 13858 – Corrosion protection of metals – Non-electrolytically applied zinc flake
coatings on iron or steel components
EN ISO 10683 – Fasteners – Non-electrolytically applied zinc flake coating systems
PDS/GEOMET-720/EN/2023-10-31/
15
Apr
Zinc Flake Coatings: The Eco-Friendly Solution for Sustainable Corrosion Prevention
In today’s world, it’s a crucial aspect of every industry, including surface coatings. As industries strive to reduce their environmental footprint, the demand for eco-friendly coating solutions has surged. Among these solutions, zinc flake coatings have emerged as a frontrunner, offering not only exceptional corrosion protection but also a sustainable alternative to traditional coating methods.
Understanding Zinc Flake Coatings
Zinc flake coatings consist of tiny zinc particles suspended in a binder system. These coatings are typically applied through a dip-spin or spray process, forming a uniform layer on the substrate surface. Upon curing, the zinc particles create a sacrificial barrier, providing excellent protection against corrosion.
Eco-Friendly Attributes
One of the key reasons why zinc flake coatings are considered eco-friendly is their composition. Unlike some traditional coatings that contain heavy metals or hazardous chemicals, zinc flake coatings are formulated with minimal environmental impact. Zinc, a naturally abundant element, is non-toxic and poses minimal risk to human health and the environment.
Moreover, zinc flake coatings are free from volatile organic compounds (VOCs), which are known contributors to air pollution and respiratory issues. By choosing zinc flake coatings, industries can significantly reduce their emissions and contribute to cleaner air quality.
Long- Term Sustainability
In addition to their eco-friendly composition, zinc flake coatings offer long-term sustainability benefits. By providing robust corrosion protection, these coatings extend the lifespan of metal components and structures, reducing the need for frequent maintenance, repairs, and replacements. This not only conserves resources but also minimizes waste generation over time.
Furthermore, the durability of zinc flake coatings translates to extended service intervals, resulting in lower energy consumption and carbon emissions associated with maintenance activities. Whether used in automotive, construction, or industrial applications, zinc flake coatings play a vital role in promoting sustainable practices across various sectors.
06
Apr
The Ultimate Guide to Industrial Coatings.
Industrial coatings play a crucial role in protecting various surfaces and enhancing their performance in demanding environments. In this comprehensive guide, we’ll delve into the world of industrial coatings, exploring the different types available, their applications across industries, and the multitude of benefits they offer.
Understanding Industrial Coatings:
1. Zinc Flake Coating.
The application of zinc coating to iron substrates forms a protective layer and results in corrosion protection referred to as cathodic protection or sacrificial protection. Aluminizing or Spray Galvanizing provides well mechanical interlocking based on quality abrasive blasted pre-treatment.
2. Zincrokote® Coating.
ZINCROKOTE® is a zinc flake anticorrosion coating using water- based chemistry. Derived from reference technologies developed by NOF METAL COATINGS, it is applied in 2 coats and meets corrosion resistance requirements up to 400 hours in salt spray test.
Coating with metallic silver appearance consisting of:
1 basecoat coat + 1 topcoat coat
Thin dry film, non-electrolytic
- Water-based chemistry
Free from hexavalent and/or trivalent chromium, nickel and cobalt Passivated zinc and aluminum flakes in a binder
Characteristics and performance
- Adjustable coefficient of friction thanks to PLUS-family topcoats
- Performance maintained at elevated temperatures (up to 300C) .
- Electrical conductivity for most application
- Bimetallic compatibility with aluminium
- No hydrogen embrittlement
- Paintable coating
Corrosion resistance
- Average thickness Salt Spray
Test (ISO 9227)6 μm
> 72 hours without white rust
> 400 hours without red rustResults may vary depending on substrate, geometry of parts and type of application processes, without thermal shock nor mechanical damage.
3. Geomet Coating.
Water based Zinc Aluminum Flake coating system protect against corrosion.Completely chrome-free and capable of protecting a wide variety of metallic surfaces, these thin dry-film basecoats are well suited to coat various metal part with simple or complex geometry, both large and small.GEOMET® can be combined with PLUS® top coats to provide a very broad range of friction coefficients.
GEOMET® 720 is applied to protect fasteners and many types of metallic parts from corrosion and is used in many industries. It can be combined with PLUS® topcoats to provide a very broad range of friction coefficients. It is the reference zinc flake coating in Asia.
- Thin dry-film, non-electrolytic
- Water-based chemistry
- Passivated zinc and aluminum flakes in a binder, patented chemistry
- Metallic silver appearance
Characteristics and performances
- The coefficient of friction can be adjusted to targeted values ranging from 0.06 to 0.20 (ISO 16047) with NOF METAL COATINGS GROUP’s selected topcoats
- Salt Spray Test (ISO 9227)
- 1000 hrs without red rust
- No hydrogen embrittlement
- Excellent assembly and multi-tightening behavior (with lubricated topcoat)
- Performance maintained at elevated temperatures (up to 300°C)
- Paintable coating
- Electrical conductivity for most application processes
- Paintable coating
- Electrical conductivity for most application processes
- Bimetallic compatibility with aluminum
GEOMET® 321 is applied to protect fasteners and many type of metallic parts from corrosion and is used in many industries. It can be combined with PLUS®, DACROLUB® or GEOKOTE® topcoats to provide a very broad range of friction coefficients. It is the most widely used product in zinc flake technology.
- Thin dry-film, non-electrolytic
- Salt Spray Test (ISO 9227)
- 240 hours without white rust
- 720 hours without red rust
- Water-based chemistry
- Passivated zinc and aluminium flakes in a binder, patented chemistry
- Chrome free alternative to DACROMET® 320
- Metallic silver appearance
GEOMET® 360 has been specially formulated to protect brake discs against corrosion. The brake disc surface can be totally treated with a coating at a thin layer, still providing high performances without any influence on braking characteristics. GEOMET® 360 is obtained from a water-based dispersion of zinc and aluminium flakes. The color of the coating is silver Characteristics and performance*
- Cosmetic protection: the brake discs can be seen through the alloy wheels. The aluminium silver color of GEOMET® 360 integrates perfectly with the style of alloy wheels
- Braking behavior: the low thickness of the coating on braking surfaces does not damage the quality of braking during the vehicle first use and enables a temporary protection of brake discs surfaces
- Temperature resistance (400°C): it enables to keep an excellent corrosion resistance on vehicles
- Protection inside the vents: no oxidation inside the fins � better thermal exchange while braking
- For after-market, GEOMET® enables to assemble the brake discs on vehicles without pre-degreasing (dry protection)
- The stronger corrosion protection of GEOMET® on the hub mounting surface makes brake disc dismounting easier
GEOMET® 500 is applied to fasteners and many type of metallic parts to protect from corrosion, and it is used in many industries
- Thin dry-film, non-electrolytic, self-lubricated
- Water-based chemistry
- Chrome free alternative to DACROMET® 500
- Metallic silver appareance
Characteristics and performance
- Coefficient of friction: 0,15 В� 0,03 (ISO 16047)
- Salt Spray Test (ISO 9227)
- 240 hours without white rust
- 720 hours without red rust
- No hydrogen embrittlement
- Excellent assembly and multi-tightening behavior
- Good mechanical damage (test method D24 1312, USCAR 32) and chemical (test VDA 621-412) resistance
- Performance maintained at elevated temperatures (up to 300°C)
- Paintable coating
- Electrical conductivity for most application
- Bimetallic compatibility with aluminum
4. Xylan Coating.
Xylan is a brand name for a family of fluoropolymer coatings known for their non-stick properties, corrosion resistance, and high-performance characteristics. Xylan coatings are often applied to various metal substrates to enhance their properties and provide additional functionalities. These coatings find applications in a wide range of industries, including automotive, oil and gas, food processing, and more.
5. GLEITMO 605
GLEITMO HMP 8420 is a water-based dry solid film lubricant with corrosion protection sealing properties. The dry lubricating film remaining upon application
29
Mar
Why is the Zinc Flake Coating Important ?
➲ During the Design of Everything from Mechanical Assemblies to Buildings, Corrosion Protection is a Key Consideration.
➲ Even the Smallest Components, Such as Nuts and Bolts, must be Adequately Protected from Corrosion. Otherwise, the Risk of Compromising the Integrity of the Entire System or Structure.
➲ ZINC FLAKE COATING (GEOMET®) is an Ideal Solution for these Applications.
➲ Because the Film is Extremely Thin-Only about 8 Microns – IT Wont Negatively Affect the Optimal Fit Between Bolts and Nuts
ADVANTAGES OF ZINC FLAKE COATING (GEOMET®)
➼ Non – pollution, environmentally responsible GEOMET® is a water-based coating technology completely free from chromium.
➼ Outstanding resistance to the salt spray test and cyclic corrosion test.
➼ Superb resistance to heat and corrosion.
➼ Superior prevention of galvanic corrosion of aluminum.
➼ No concern for hydrogen embrittlement.
➼ Excellent coating properties.
➼ UV Resistance & Fluid Resistance.
ZINC FLAKE COATED PARTS
28
Mar
What is GEOMET ?
Water based Zinc Aluminum Flake coating system protect against corrosion.
Completely chrome-free and capable of protecting a wide variety of metallic surfaces, these thin dry-film basecoat are well suited to coat various metal part with simple or complex geometry, both large and small.
GEOMET® can be combined with PLUS® top coats to provide a very broad range of friction coefficients.
CHARACTERISTICS OF GEOMET®
- Chromium Free Water Based Chemistry
- Green/Eco Coating System- No Pollution Generate From The Process
- Very Thin Layer With Better Converge
- Excellent Anti-Corrosion Performance
- Excellent Heat Resistance
- Free From Hydrgen Embrittlement
- Minimize Galavanic Corrosion
- REACH,ROHS,ELV &WEEE Compliant
- Approvals from Global OEM’S
- World Wide Net Work
TYPES OF GEOMET®
GEOMET® 720 is applied to protect fasteners and many types of metallic parts from corrosion and is used in many industries. It can be combined with PLUS® topcoats to provide a very broad range of friction coefficients. It is the reference zinc flake coating in Asia.
- Thin dry-film, non-electrolytic
- Water-based chemistry
- Passivated zinc and aluminum flakes in a binder, patented chemistry
- Metallic silver appearance
GEOMET® 500 is applied to fasteners and many type of metallic parts to protect from corrosion, and it is used in many industries
- Thin dry-film, non-electrolytic, self-lubricated
- Water-based chemistry
- Chrome free alternative to DACROMET® 500
- Metallic silver appareance
GEOMET® 360 has been specially formulated to protect brake discs against corrosion. The brake disc surface can be totally treated with a coating at a thin layer, still providing high performances without any influence on braking characteristics. GEOMET® 360 is obtained from a water-based dispersion of zinc and aluminium flakes. The color of the coating is silver Characteristics and performance*
- Cosmetic protection: the brake discs can be seen through the alloy wheels. The aluminium silver color of GEOMET® 360 integrates perfectly with the style of alloy wheels
- Braking behavior: the low thickness of the coating on braking surfaces does not damage the quality of braking during the vehicle first use and enables a temporary protection of brake discs surfaces
- Temperature resistance (400°C): it enables to keep an excellent corrosion resistance on vehicles
- Protection inside the vents: no oxidation inside the fins � better thermal exchange while braking
- For after-market, GEOMET® enables to assemble the brake discs on vehicles without pre-degreasing (dry protection)
- The stronger corrosion protection of GEOMET® on the hub mounting surface makes brake disc dismounting easier
GEOMET® 321 is applied to protect fasteners and many type of metallic parts from corrosion and is used in many industries. It can be combined with PLUS®, DACROLUB® or GEOKOTE® topcoats to provide a very broad range of friction coefficients. It is the most widely used product in zinc flake technology.
- Thin dry-film, non-electrolytic
- Salt Spray Test (ISO 9227)
- 240 hours without white rust
- 720 hours without red rust
- Water-based chemistry
- Passivated zinc and aluminium flakes in a binder, patented chemistry
- Chrome free alternative to DACROMET® 320
- Metallic silver appearance
GEOMET COATED PARTS
28
Mar
GEOMET® Applications In Various Industries
GEOMET® is the world No. 1 solution provider in the Zinc Flake coating industry. GEOMET® coating technology being recruited for various metallic components used in automotive to satisfy unique requirements given by Original Equipment Manufacturers.
No concern of Hydrogen Embrittlement
- Excellent Heat resistance
- Supper corrosion resistance
- Protect from Galvanic corrosion
- Supper corrosion resistance
- Excellent Chipping Resistance
- No concern of Hydrogen Embrittlement
- Outstanding Corrosion Resistance Performance
- Cosmetic Protection
- Excellent Breaking Behaviors
- Super Temperature Resistance.
RAILWAY INDUSTRIES
Contribution for the world largest transport infrastructure. Being a pioneer in Zinc Flake Coating Technology and trusted partner in Railway Industry.
- Excellent Corrosion Resistance
- Better Chemical Resistance
- Large Coefficient of Friction Range
- No Concern of Hydregon Embrittlement
- Chromium Free Coatings
- Good Paintibility
- Global Net Work
RENEWABLE ENERGY
- Microlayer coating system
- Excellent Corrosion Resistance
- No concern of Hydrogen Embrittlement
- Super Heat Resistance
- Approvals from GLOBAL OEMS
- Worldwide network
SOLAR ENERGY
- Excellent corrosion resistance
- Minimize galvanic corrosion
- Good outdoor exposure performance
- Better gaugebility
