Corrosion protection

Special coating materials that offer cathodic protection can be used to create a barrier layer according to the requirements of the specific use. Red rust is prevented from forming and resistance to aggressive acids and caustic solutions is greater due to non-porous protective coatings.

FuseCoat® – Surface Technology by Impreglon

Source: Youtube / Youtube-License

High end corrosion protection has a name: FuseCoat®. This Impreglon technology ensures highest durability without hydrogen embrittlement.

Impreglon products for corrosion protection

  • AF

    Antifricor®

    Multifunctional dry lubrication

    With antifricor®, Impreglon offers a proven combination system to optimize friction, wear and lubrication of components moving against each other. Reduced friction with antifricor® leads to a longer service life of the friction partners...

  • CoC

    CompCote®

    Performance in surfaces

    With its low density (2.8 g/cm3), aluminum, in conjunction with CompCote®, opens up new approaches in technical and decorative applications with increased requirements on quality. CompCote® is a polymer-aluminum oxide composite coating with revolutionary properties.

  • DM

    Delta MKS®

    Powerful corrosion protection with zinc flakes

    Delta MKS® is a corrosion protection coating system applied with the latest coating procedures - dip spinning, dipping and fully automatic wet spraying.

  • FC

    FlexiColor®

    Decorative and functional powder coatings

    High quality powder coatings in nearly any color can be applied with FlexiColor®, the environmentally friendly coating procedure. Based on epoxy resin, polyester resin or polyamide, the coatings offer a uniform surface structure.

  • CDP

    CDP-Coating

    The dip painting process for large quantities of items

    Cathodic dip painting (CDP) makes use of electrochemical properties in the coating process. It is based on the physical principle that materials with different charges are attracted to one another and therefore achieve very good grip.

  • MC

    MagnaCoat®

    Polymer coating systems for heavy-duty corrosion protection

    MagnaCoat® coatings are thick-film polymer and fluoropolymer coatings with a virtually non-porous surface.

  • MF

    Microfinish®

    The transparent thin-film corrosion protection

    Microfinish® is a wear-resistant and transparent corrosion protection. It can even be used for complex three-dimensional component geometries without developing the stretch cracks typical of this type of use.

  • NF

    Nanofinish®

    High-precision nano-coatings

    Based on very thin layers, Nanofinish® follows the contour of the relevant part, creating infiltration resistant nonstick coatings.

  • NCA

    Nucocer® AL

    Electrochemical plasma ceramic coating of aluminum

    Nucocer® AL coatings are produced in plasma-chemical oxidation processes. They have a finely crystallized ?-AL2O3 structure and an amorphous zone in the upper part.

  • NTE

    Nucotec® EL

    The anodic oxidation of aluminum

    Nucotec® EL layers are made from hard, wear resistant aluminum oxide. They are formed through the chemical reaction that turns aluminum into aluminum oxide.

  • NTH

    Nucotec® HE

    The hard anodization (hard coat) of aluminum

    Nucotec® HE layers are made from extremely hard, wear resistant aluminum oxide. They are formed through the chemical reaction of the aluminum material in special cooled acid electrolytes.

  • ZTD

    ZTD Coat®

    High-tech corrosion protection with zinc thermal diffusion

    ZTD Coat® is a special corrosion protection coating which thermally modifies the surface of a wide variety of components using the patented zinc thermal diffusion method.

Antifricor® – Multifunctional dry lubrication

With antifricor®, Impreglon offers a proven combination system to optimize friction, wear and lubrication of components moving against each other. Reduced friction with antifricor® leads to a longer service life of the friction partners (see the grease lubrication graphic for comparison).

antifricor® is suitable for all applications where friction forces reduce functionality and durability of components. Wear resistance, dry lubrication and corrosion protection are combined effectively in one coating system.

antifricor® is used by almost all major automotive manufacturers. Typical parts are hinges, door locks, door stays, door handles, adjustment systems, fittings and other fasteners.

Coating thicknesses: 100 µm to 800 µm
Temperature range: -40 °C to +260 °C
Surface Roughnesses (Ra): up to approx. 1.5 µm
FDA-approved: yes, with certain coating types
Dry film lubricant
Corrosion protection
Substrate

CompCote® – Performance in surfaces

With its low density (2.8 g/cm3), aluminum, in conjunction with CompCote®, opens up new approaches in technical and decorative applications with increased requirements on quality. CompCote® is a polymer-aluminum oxide composite coating with revolutionary properties. In addition to the CompCote® process, there is also "CompCote®-H". CompCote®-H offers better hardness characteristics and better wear and corrosion properties.

CompCote® is free of heavy metals, fluoropolymers and PVC. The procedure is patented in Europe, the USA and other countries and is classed as food-safe by the American Food & Drug Administration (FDA).

 

Layer structure, layer thicknesses and tolerances

CompCote® is formed by transforming the substrate and therefore guarantees optimal bonding. CompCote® grows in the substrate and out of it too. CompCote® layers are formed through anodic oxidation of the base material and simultaneous molecular bonding of the aluminum oxide layer with polymers. In contrast to the conventional anodization procedure, anodization with the CompCote® process creates a surface with a cellular structure.

Due to the molecular polymer content, CompCote® forms chemical bond bridges when a coordinated top coat is selected. This achieves a better adhesive strength.

 

The optimal solution for your specific application

Examples of applications where CompCote is successfully used:
Architecture, the automotive industry, electrical engineering, photo and video technology, household appliances, hydraulics, information technology, hunting weapons, the food industry, aviation, mechanical engineering, medical technology, pneumatics, sports articles, packaging machines, defense technology

 

Properties

  • High level of corrosion protection
  • High level of wear protection
  • Very good tribological properties
  • Low impact on the surface roughness
  • Protection against cold welding
  • Optimized microstructure
  • Improved surface hardness 300–600 HV depending on the alloy and process
  • High level of fracture strength
  • Good adhesion properties (chemical bonding with top coats)
  • High UV resistance
  • Food safe according to the FDA
  • More lightfast than colored standard anodized layers

 

Hardness & wear protection

CompCote® forms an extremely hard aluminum oxide (1200 HV). However, as with all anodic oxidation layers, only the "apparent hardness" is measured as the layer hardness. This value is between 300–600 HV depending on the alloy and the procedure.

CompCote® is over 3x and around 1.5x more wear resistant than anodic and hard-anodic (hard coat) oxide layers (Taber Abraser Test /MIL A 8625F). Results from the Taber Abraser Test show a significant reduction in the abrasion rate with the CompCote® procedure.

CompCote® replaces chromic acid layers: Thin chromic acid layers (2.0 ?m) are known for their good properties under alternating bending stress, which is why they are used in the aviation industry. CompCote® performs even better in this field, as it has no impact on the alternating bending stress resistance of the base material. It also outperforms chromic acid layers in corrosion resistance tests.

CompCote® is considerably tougher and break-proof: CompCote® shows a fibrous fracture pattern in notch impact tests. Conventional oxidation layers, on the other hand, have a brittle fracture pattern like glass.

In various pairings and friction tests, CompCote® shows very good anti-scuffing properties. In some cases, the friction values even reduce in repeat tests (self-smoothing effect). Stick-slip effects are reduced.

 

Corrosion protection

CompCote® is corrosion-resistant and outperforms conventional anodizing layers in corrosion tests (salt spray test / ASTM B117).

Delta MKS® – Powerful corrosion protection with zinc flakes

Delta MKS® is a corrosion protection coating system applied with the latest coating procedures - dip spinning, dipping and fully automatic wet spraying.

The surface coating is free of chromium (VI) and the zinc flakes provide cathodic protection. Hydrogen-induced corrosion, occurring when zinc is applied with electroplating, is not an issue. Specially developed combination layers also achieve good nonstick properties and help to optimize the sliding properties of the zinc flake coating.

Zinc flake coating systems are mainly used in the automotive industry and in applications where outstanding corrosion resistance has to be combined with other functional and decorative properties. Impreglon fulfills all specifications of international car manufacturers.

Layer thickness:5 µm to 30 µm (depending on the layer structure)
Polymer layer
Metal corrosion protection layer
Substrate

FlexiColor® – Decorative and functional powder coatings

High quality powder coatings in nearly any color can be applied with FlexiColor®, the environmentally friendly coating procedure. Based on epoxy resin, polyester resin or polyamide, the coatings offer a uniform surface structure. They are available in different gloss levels or with structural effects.

FlexiColor® powder coatings can be applied to nearly any type of metal. Good bonding, excellent protection from corrosion and weather influences, combined with good scratch resistance and impact absorption, are the outstanding features of these coatings, along with a wide variety of surface structures.

Coating thickness: 35 µm to 600 µm
Temperature range: -40 °C to 160 °C depending on the coating type
FDA-approved: yes
Polymer layer
Compound layer (alternative)
Substrate

CDP-Coating – The dip painting process for large quantities of items

Cathodic dip painting

Cathodic dip painting (CDP) makes use of electrochemical properties in the coating process. It is based on the physical principle that materials with different charges are attracted to one another and therefore achieve very good grip. Cathodic dip painting achieves an extremely even coating on metal surfaces and cavities, with uniform layer thicknesses and good surface qualities.

Corrosion protection

Cathodic dip painting ensures effective and lasting protection against corrosion with high temperature resistance and excellent chemical resistance. Such surfaces are scratch-proof and protect against stone chips.

Environmentally friendly

CDP coating is an environmentally friendly surface treatment method, since water is generally used as the solvent. It is well-suited for automated coating and meets the high standards of the automotive industry.

Layer combinations

CDP-coated surfaces provide the best basis for a combination with a powder coating or conventional painting. As a duplex coating, CDP can also be applied to zinc flake, galvanized zinc or zinc alloy layers. CDP coating can therefore be used almost anywhere, regardless of color and surface structure.

MagnaCoat® – Polymer coating systems for heavy-duty corrosion protection

MagnaCoat® coatings are thick-film polymer and fluoropolymer coatings with a virtually non-porous surface. They offer excellent corrosion resistance, good nonstick properties and high electrical impact resistance, even at high temperatures. The coatings also provide excellent barrier protection to resist aggressive chemicals.

MagnaCoat® polymer coatings can be applied to all surfaces made of aluminum, steel, stainless steel or other alloys.

Coating thicknesses: 100 µm to 800 µm
Temperature range: -40 °C to +260 °C
Surface roughnesses (Ra): up to approx. 1.5 µm
FDA-approved: yes, with certain coating types
Topcoat with barrier layer
Polymer layer with barrier layer
Compound layer Substrate

Microfinish® – The transparent thin-film corrosion protection

Microfinish® is a wear-resistant and transparent corrosion protection. It can even be used for complex three-dimensional component geometries without developing the stretch cracks typical of this type of use.

The highly flexible and micro fine thin-layer process allows pre-coated components to be treated using a remodeling process. The coating process is also suitable for smooth, polished or finely structured surfaces. The layer, which is a mere 0.3 to 5 µm thin, is completely transparent and contour-following so that the shine or structure of the original surface are maintained. No reworking, such as polishing the surface again, is necessary.

The coating is temperature resistant up to approx. 350 °C. Due to the relatively low process temperature of below 50 °C, there is no danger of warpage or discoloring of the components to be coated.

Microfinish® is suitable for all conductive metal surfaces and is especially suited as a corrosion and scratch protection coating for aluminum alloys or as a nonstick coating for molding tools and punch films.

Nanofinish® – High-precision nano-coatings

Based on very thin layers, Nanofinish® follows the contour of the relevant part, creating infiltration resistant nonstick coatings.

Damage to the surface coating usually leads to infiltration of the function layers. This is not the case with nanocoating: Nanofinish® ensures that the damage is restricted to the local area.

Nanofinish® can be applied from a thickness of 100 nm on nearly all substrates and is temperature-resistant up to 350 °C. This nanocoating is particularly well suited for polished components and high precision applications, e.g. as an ultra-thin nonstick coating for easy removal of molded parts or as a protective film for a wide range of surfaces.

Coating thickness: 100 nm to 400 nm
Temperature range: up to +350 °C (different depending on the application)
Functional layer made up of nanoparticles
Substrate

Nucocer® AL – Electrochemical plasma ceramic coating of aluminum

Nucocer® AL coatings are produced in plasma-chemical oxidation processes. They have a finely crystallized ?-AL2O3 structure and an amorphous zone in the upper part.

Main features:

  • High level of hardness
  • Extremely high wear resistance
  • Excellent adhesion to the base material
  • Vibration resistance
  • Good corrosion resistance
  • High temperature resistance
  • Vacuum resistance
  • High absorption of radiation

Application areas

  • General engineering
  • Textile machinery parts
  • Vacuum technology
  • Chemical equipment
  • Lifting technology
  • Drive technology
  • Electrical engineering
  • Aerospace industry
Maximum layer thickness: 300 µm
Standard layer thickness: 70-120 µm
Coating thickness (depending on the alloy): 1200-2000 HV 0.01

Nucotec® EL – The anodic oxidation of aluminum

Nucotec® EL layers are made from hard, wear resistant aluminum oxide. They are formed through the chemical reaction that turns aluminum into aluminum oxide. This results in excellent adhesion to the base material. Nucotec® EL layers "grow" out of the base material by around 1/3 of the layer thickness.

Main features:

  • High quality, decorative surfaces
  • Silky shine to matt etched finish
  • Wide range of colors
  • Good wear resistance
  • Corrosion protection
  • Good dimensional accuracy
  • Food safe

Application areas:

  • Automotive industry
  • Mechanical engineering
  • Photo and video technology
  • Office and data processing technology
  • Pharmaceuticals industry
  • Medical technology
  • Telecommunication
  • Pneumatics
  • Household appliance industry
  • Food industry

 

Nucotec® HE – The hard anodization (hard coat) of aluminum

Nucotec® HE layers are made from extremely hard, wear resistant aluminum oxide. They are formed through the chemical reaction of the aluminum material in special cooled acid electrolytes. The transformation results in excellent adhesion between the base material and the hard oxide protective layer.

Nucotec® HE layers are much more compact than conventionally produced anodic oxidation layers (anodized layers) and are therefore significantly more resistant to wear and corrosion.

Due to the micro-porous properties, only the "apparent hardness" is measured. This value is between 300 – 600 HV0.025 depending on the alloy. The thermal conductivity is around 10% of the base material, the electrical dielectric strength is max. 20 V/µm (Nucotec® HE-Cu and Nucotec® HE-GD) or max. 30 V/µm (Nucotec® HE).

Application areas:

  • Automotive industry
  • Mechanical engineering
  • Aviation industry
  • Electrical engineering
  • Medical technology
  • Food industry
  • Communication technology
  • Measurement and control technology
  • Defense technology

Main features:

  • High, homogeneous hardness
  • Extremely good antiwear protection
  • Good corrosion protection
  • Good sliding properties
  • Excellent adhesion to the base material
  • Good dimensional accuracy
  • High electrical insulation
  • High thermal protection
  • Food safe

The optimal solution for your application

Process type Material (selection) Product example
Nucotec® HE AL AL wrought and cast alloys, e.g. AlMg3, AlMgSi1;, AlMGSiPb, AlZnMgCu, G-AlMg5;, G-AlSi10Mg Precision turned parts, cylinder liners, pump impellers, air bearings, control pistons, pneumatic valves, heating plates, injection molding tools, machine parts
Nucotec® HE-Cu Al wrought and cast alloys with a high copper content, e.g. AlCuMg1, AlCuMgPb, AlCuBiPb, G-AlSi9Cu3, G-AlSi6Cu4, AlCu4Ti Precision turned parts, motor parts, machine parts, rolls, coils, bearing parts, valves
Nucotec® HE-GD Al die-casting alloys, e.g. GD-AlSi9Cu3, GDAlSi10Mg, GD-AlSi12, GD-AlMg9Si Hydraulic cylinders, pump housings, motor pistons, machine parts, coupling parts

ZTD Coat® – High-tech corrosion protection with zinc thermal diffusion

ZTD Coat® is a special corrosion protection coating which thermally modifies the surface of a wide variety of components using the patented zinc thermal diffusion method. The resulting protective layer forms a strong bond with the carrier material and thereby ensures excellent long-term corrosion protection.

  • Uniform layer thickness, even with complicated geometries
  • No hydrogen embrittlement
  • Protection from damage, even during molding processes
  • Protection from seizing
  • Oxidation resistance

ZTD Coat® is used primarily in the automotive industry and anywhere where excellent corrosion protection must be combined with other functional and decorative properties. Impreglon fulfills all specifications of international car manufacturers.

Coating thickness: 5 to 120 µm
Temperature range: Long-term corrosion protection up to 350 °C

Locations for Coating: Corrosion protection

Bottrop

Impreglon Oberflächentechnik GmbH
Brakerstraße 31
46238 Bottrop
Germany
1 +49 2041 7226-0
+49 2041 7226-34
bottrop@impreglon.de
Local Site

Landsberg

Impreglon Beschichtungen GmbH
Albert-Einstein-Straße 16
86899 Landsberg
Germany
1 +49 8191 911 86-10
+49 8191 911 86-12
landsberg@impreglon.de
Local Site

Lüneburg

Impreglon Oberflächentechnik GmbH
Hohenhorststraße 1
21337 Lüneburg
Germany
1 +49 4131 882-10
+49 4131 882-250
lueneburg@impreglon.de
Local Site

Nidda-Borsdorf

Impreglon Beschichtungen GmbH
Zeppelinstraße 13
63667 Nidda-Borsdorf
Germany
1 +49 6043 9613-0
+49 6043 6075
nidda@impreglon.de
Local Site

Obrigheim

Impreglon Surface Technology GmbH
Kraichgaublick 21
74847 Obrigheim
Germany
1 +49 6262 9221-0
+49 6262 9221-25
obrigheim@impreglon.de
Local Site

Wünschendorf

ALZI Metallveredlung GmbH
Untitzer Straße 6
07570 Wünschendorf (Zwickau)
Germany
1 +49 36603 841-0
+49 36603 88202
info@alzi-metallveredlung.de
Local Site

Zwickau

Gebr. Linke GmbH
Olzmannstraße 51
08060 Zwickau
Germany
1 +49 375 522491
+49 375 5976454
zwickau@impreglon.de
Local Site

Zwönitz

Impreglon Zwönitz GmbH
Lutherstraße 18
08297 Zwönitz
Germany
1 +49 37754 505 0
+49 37754 505 24
zwoenitz@impreglon.de
Local Site

Tatabànya

Impreglon Ungarn Kft.
Buzavirag u. 16
2800 Tatabànya
Hungary
10 +36 34 514670
+36 34 514680
info@impreglon.hu
Local Site

Minto

Impreglon Australia Pty Ltd
67 - 77 Airds Road
MINTO NSW 2566
Australia
11 +61 2 9603 2388
+61 2 9603 5253
sales@impreglon.com.au
Local Site

Shanghai

Impreglon Surface Technology (Shanghai) Co., Ltd.
5, No. 8618 Songze Avenue
201707 Shanghai
China
13 +86 21 69211758
+86 21 69211756
shanghai@impreglon.cn
Local Site

Altdorf

Impreglon Coatings AG
Industriezone Schächenwald
6460 Altdorf
Switzerland
4 +41 41 875 7490
+41 41 875 7297
altdorf@impreglon.ch
Local Site

Tamworth

Impreglon UK Ltd.
Kingsbury Link, Trinity Road
Tamworth B78 2EX
United Kingdom
5 +44 1827 871400
+44 1827 871401
info@impreglon.co.uk
Local Site

Deurne

Impreglon Surface Technology BV
Vuurijzer 1
5753 SV Deurne
Netherlands
6 +31 493 352 820
+31 493 352 858
deurne@impreglon.nl
Local Site

Baltimore

Impreglon, Inc.
2915 Wilmarco Avenue
Baltimore, MD 21223
U.S.A.
7 +1 410 644 4500
+1 410 644 1766
info@impreglon-baltimore.us
Local Site

Fairburn

Impreglon Inc.
220 Fairburn Ind. Blvd.
30213 Fairburn, GA
U.S.A.
7 +1 770 969 9191
+1 770 969 9192
info@impreglon.us
Local Site

Houston

Impreglon Surface Technologies, Inc.
6421 Lozano Drive
Houston, Texas 77041
U.S.A.
7 +1 713 466 9655
+1 713 466 1762
info@impreglonsurfacetechnologies.us
Local Site

Michigan

Impreglon Inc.
225 North Roeske Avenue
Michigan City, Indiana 46360
U.S.A.
7 +1 800 640 0090
+1 888 890 0077
michianaimp@ameritech.net

Milwaukee

Impreglon Cellramic
8399 N. 87 th St.
PO Box 241370
Milwaukee, WI 53224
U.S.A.
7 +1 414 357 0260
+1 414 357 0267
info@impreglon-cellramic.us
Local Site

Brzotin-Bak

GtO Slovakia, s.r.o.
Gemerska 558
04951 Brzotin-Bak
Slovakia
8 +421 58 78809 61
+421 58 73220 12
info@gto.sk
Local Site

Třemošnice

Povrchové úpravy Třemošnice s.r.o.
Budovatelů 484
538 43 Třemošnice
Czech Republic
8 +420 469 617 631
+420 469 662 020
info@impreglon-put.cz
Local Site