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Zinc Flake (Delta-MKS)
Zinc Flake (Delta-MKS) is Zinc flake or Zinc-Aluminium flake system of cathodic protection without Chromium (VI), providing the micro coating thickness with high-performance corrosion protection. Zinc flake coating can be achieved protective effects against base metal corrosion (red rust) as per salt spray test (SST) up to 1,500 hours or above follow customer’s requirement A coating of zinc flake is a ‘paint’ made up of a lot of little flakes, which primarily protects components of various types from corrosion. DELTA-MKS® is a coating composition consisting of numerous small zinc and aluminum flakes mixed with a solvent. In compliance with DIN EN ISO 10683 or DIN EN 13858 standards, it is a prominent Zinc Flake Coating technology designed for the corrosion protection of metallic components. This zinc flake layer shields metal parts from corrosion across various environmental conditions. The coating acts sacrificially by donating electrons instead of the base metal, causing corrosion to occur on the coating's surface instead. This method of rust prevention is known as cathodic protection. Due to its ability to perform well with coatings of minimal thickness, the zinc flake concept has become most widely used for screws and fasteners in automotive industry and also increasingly being used for construction machines and in the field of renewable energy. During the coating process, no hydrogen is produced and thus no danger exists of any hydrogen-induced embrittlement. For this reason, zinc flake coating is also particularly well suited to high-strength steels of classes 10.9 and 12.9 / of 1,000 MPa and above. DELTA-MKS® products-divided up by base coats and top coats – and their features, plus possible application techniques and areas of use / markets. Basecoat: The basecoat is the zinc flake coating and is applied directly to the substrate to be treated. This base layer determines the corrosion protection properties. The zinc content provides a high level of cathodic corrosion protection. Topcoat: The topcoat complements the properties of the basecoat, and gives the coating additional multifunctional properties. In addition to corrosion protection, the topcoat protects against chemical and mechanical impacts and is responsible for the:
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QUALITY STANDARDS
Thai Parker has continuously improved and developed our production processes and management system until we received the quality and environmental management system certifications.
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Feature
The characteristics of our Zinc flake systems at a glance
- Offer high levels of cathodic corrosion protection
- Consist of a base coat and usually a topcoat (referred to as a system)
- Have extremely thin coats of typically 8-12 µm
- Are annealed at low-temperatures (up to max. 240 ºC)
- Cause no application-induced hydrogen embrittlement
- Have an active appearance and coloring possible via the topcoat
- Can be adjusted regarding their coefficients of friction for threaded parts according to customer specifications and fulfill other assembly characteristics
- Completely forgo any use of heavy metal that are harmful to health, such as chrome (VI), and are thus environmental friendly
- Sparing on natural resources
- Conduct electricity
- Are highly resistance to chemicals
- Permit the coating of threaded parts without any working or re-cutting
- Comply with EU, End-of-Life Vehicle Directive’ 2000/53/EC and ’Electrical and Electronic Equipment Waste Directive’ 2002/95/EC
Application
Our micro-layer corrosion protection systems can be used with multitude of parts and applications. From littles screws, to a variety of different springs, to large parts like engine brackets – the breadth is enormous.
Our systems now feature in many industries such as automotive, truck, construction machines, agricultural machinery, aviation and in the field of renewable energy (like wind turbine and solar cells).
We offer the appropriate system solution, tailored to the different requirements of the respective OEMs.
Parts:
- Big Parts
- Chassis
- Braking systems
- Springs
- Small fasteners
- Big fasteners
- Nuts
- Stamp parts
- Clips, clamps
- Die-casting
Check more of our Product / Process type specifications below.
Frequently Asked Questions
Process: Zinc flake coating is a non-electrolytic process (e.g., dip-spin or spraying), which significantly reduces the risk of Hydrogen Embrittlement, especially in high-tensile steel, unlike electroplating, which uses electrical current and can induce hydrogen embrittlement.
Performance: Zinc flake generally provides superior and longer-lasting corrosion protection in Salt Spray Tests at equal film thicknesses.
Constant Coefficient of Friction: This is a crucial property for threaded fasteners (bolts and nuts) and can be precisely controlled to a target range by using a lubricated topcoat.
Dimensional Accuracy: The coating is thin (5-15 µm), which helps maintain tight thread fits and prevents part deformation (no warping).
Absolutely: Zinc flake coating is highly suitable for high-strength steels because the application process does not involve electricity or acids, thus eliminating the risk of application-related Hydrogen Embrittlement, a major concern with electroplating for these materials.
Zinc Flake Coating is a surface treatment technology that applies thin flakes of zinc and aluminum to metal components to provide exceptional corrosion protection. The coating functions via cathodic protection, making it ideal for parts exposed to harsh environments.
It is perfect for fasteners (screws, nuts, bolts), springs, stamped metal parts, automotive components, heavy machinery, and renewable energy equipment that require long-term durability against corrosion.
While both serve as protective coatings, they excel in different areas. Zinc Flake Coating is the preferred choice for high-strength components that require superior corrosion resistance and a thin coating layer, all without the risk of Hydrogen Embrittlement.
