Electrolytic Coatings

Maximum product dimensions
3,3 x 0,8 x 1,4 m

Purpose/features
An electrochemical coating process for aluminium products that forms an oxide layer on the surface of the product, providing good corrosion protection, a visually pleasing appearance and various operative features, such as hardness and abrasion resistance.

The main factors that affect the appearance of the anodize layer are the surface quality of the raw material and the grade and purity of the aluminium that is used.

Processes
The anodizing process takes place in sulphuric acid solution. The colour of the oxide layer that is formed on the surface of the product can either be natural color or it can be coloured black. After coloring, the surface is sealed. If the product is painted after anodizing, the surface is left unsealed.

Color Options
Natural color and black

Standard
EN ISO 7599

Maximum product dimensions
3,3 x 0,35 x 1,4 m

Purpose/features
Aluminium polishing is based on aggressively etching the aluminium surface with a chemical process that reduces the microprofile of the aluminium surface. The end result is a glossy finish.

The polishing process can be used alone or it can be combined with an anodizing process. When used together, the product is anodized with a uniformly glossy oxide layer that provides it with good corrosion protection and an appealingly glossy finish, as well as hardness and abrasion resistance.

In general, the chemical polishing of aluminium is suitable for many aluminium grades. However, the best and highest levels of gloss are achieved on clean aluminium.

Maximum product dimensions
3,3 x 0,8 x 1,4 m

Purpose/features
A chemical coating process in which a passivation layer that is compliant with the RoHS directive is formed on the surface of the aluminium. The passivation surface layer is almost colourless.

The purpose of the surface layer is to provide products with good corrosion protection, a level of heat resistance (350 °C) that does not compromise any of its corrosion protection features, and a good surface for paintwork. Passivated aluminium can withstand the high temperatures required by the powder painting furnace.

Standard
EN ISO 12487

Purpose/features
An electrochemical process that precipitates a uniformly glossy silver finish on the surface of a product. Silver plating is used to provide products with features that increase their electrical and thermal conductivity, hardness and wear. The process can be used to coat steel, copper and copper alloy surfaces as well as nickel-plated objects.

Finishing treatments (passivation)
Silver plating will darken over time, and the best way to protect silver-plated products against this natural reaction is to passivate them. The passivation surface is completely clear, so it will not affect the gloss of the original surface or any of the other features that have been achieved with the silver plating process.

Every silver-plated product is passivated using a RoHS-compliant process.

Choose from rack or barrel plating.

Standard
EN ISO 4521

Maximum product dimensions
1,8 x 0,8 x 0,25 m

Only for Copper Metals

Purpose/features
The autocatalytic nickel coating is particularly suitable for applications where dimensional accuracy is required, the operating conditions are particularly demanding and the goal is a long life cycle.

The chemical nickel process precipitates a semi-bright and excellent nickel coating on the surface of the product. The chemically precipitated nickel layer is very smooth, stain-free and wear-resistant, and giving the product excellent corrosion resistance even in difficult conditions.

Choose from rack or barrel plating.

Standard

The coating meets the requirements of EN ISO 4527 and the RoHS directive.

Maximum product dimensions
1,8 x 0,8 x 1,3 m

Purpose/features
An electrochemical process that precipitates a uniformly glossy, well-spread and beautiful, bluish chrome surface on a product.

In the so-called decorative chrome plating process, nickel is always used as undercoating under the chromium. Chromium improves the corrosion protection and appearance of nickel-plated products.

Bright chrome plating is used to provide products with decorative features, hardness and wear-enhancing features, as well as extremely good protection against corrosion.

Standard
EN ISO 1456

Maximum product dimensions
2,7 x 0,5 x 1,3 m

Purpose/features
An electrochemical process that precipitates a high-gloss, non-porous and well-spread copper surface on a product.

Copper plating is often used as an intermediate coating for other coatings to provide additional features such as good coverage, adhesiveness and an additional layer of corrosion protection.

The process can be used to plate steel, aluminium, copper alloy and zinc die casts.

Choose from rack or barrel plating.

Standard
EN ISO 1456

Maximum product dimensions
2,7 x 0,5 x 1,3 m

Purpose/features
An electrochemical process that precipitates a high-gloss (mirror gloss), excellently spread and smooth nickel surface on a product. In addition, the process is ideal for double nickel plating processes (1st layer of semi-gloss nickel + 2nd layer of bright nickel), which provides products with particularly good corrosion protection features for outdoor conditions.

Nickel plating is used to provide products with decorative features, hardness and wear-enhancing features, as well as extremely good protection against corrosion. In addition, nickel plating is used as undercoat for bright chrome plating. If necessary, the nickel plating can include several layers of undercoating to provide the product with additional features.

Choose from rack or barrel plating.

Standard
EN ISO 1456

Maximum product dimensions
3,0 x 0,7 x 1,3 m

Purpose/features
Stainless steel pickling cleans the surface by etching any impurities such as oxide scale, stains and rust in welds. After this, a passivation layer (oxide film) is formed on the surface, providing protection against corrosion. Pickling improves paint adhesion.

Pickling provides stainless steel products with a clean, metallic and silky smooth finish.

Standard
No applicable standard.

Maximum product dimensions
3,0 x 0,7 x 1,3 m

Purpose/features
An electrochemical process that precipitates a high-gloss, excellently spread and smooth zinc surface on a product.

Normally, as part of the coating process, all zinc-electroplated surfaces are passivated immediately after the zinc plating process, which helps prevent the formation of any so-called white rust on the surface of the zinc coating. We have completely abandoned passivation containing Cr6+.

Zinc coating is primarily used to provide products with excellent protection against corrosion. Additionally, the coating is used to provide products with decorative features, glossiness, smoothness, a specific colour, and serves as a good base for painting.

Choose from rack or barrel plating.

Passivations
A conversion coating that is formed on zinc coating that helps protect the zinc surface from corrosion.

The type of passivation is selected according to either the colour or the required corrosion resistance duration level:

• blue
• yellow (iridescent) or
• black.

Cr3+ blue passivation (RoHS-approved and cobalt-free)
A passivation bath for zinc coatings that produces a high-gloss and vibrantly blue passive layer. Based only on three-value chromium compounds. Gloss, colour and corrosion protection are preserved even in heat-treated items. This type of passivation provides a level of white rust resistance that lasts at least 100 hours (EN ISO 2081).

Cr3+ yellow passivation (RoHS-approved)
A type of yellow passivation for zinc coatings that is based on three-value chromium and provides a high level of corrosion resistance. The passivated surface is iridescent yellow in appearance. This type of passivation provides a level of white rust resistance that lasts at least 100 hours (EN ISO 2081).

This type of passivation provides a level of white rust resistance that lasts at least 100 hours (EN ISO 2081).

Cr3+ black passivation (RoHS-approved)
Black passivation gives the galvanized part a well-groomed and beautiful black appearance that is also technically high quality. Together with the galvanizing, Cr3+ black passivation and finishing, the product has a very good corrosion protection and visual appearance. The surface treated products are also heat treatable. Barrel plating only. With Cr3+-black passivation, a sealer post-treatment is always used.

The galvanized and black-passivated surface is also well suited for priming the paint, giving the paint an excellent fixing base and additional protection.

The Cr3+ black passivated coating meets the requirements of EN ISO 2081: 2018 and the RoHS directive. In addition, the coating meets the requirements of the European End-of-Life Vehicles Directive (ELS) for commercial vehicles and their components.

Cr3+-Lanthane TR 175 thick film passivation (RoHS-approved)
A passivation system for zinc coatings that is based on three-value chromium and contains nanoparticles. The passivation layer provides products with a glossy and slightly silver-coloured iridescent film that features an excellent level of corrosion protection due to the nanoparticle technology that is used. This type of passivation provides a level of white rust resistance that lasts at least 250 hours (EN ISO 2081). It also includes good self-healing features that prevent the immediate formation of white rust in scratches that reach down to the zinc surface.

Sealing treatment
Sealing is a post-dip treatment for zinc-coated and passivated surfaces. It provides passivated products with additional corrosion protection. Rack plating only.

Varnish
A colourless water-dilutable drying furnace varnish for zinc-coated and passivated surfaces. Varnish is used to protect areas that the zinc coating cannot reach, such as in tubular structures. In addition, the varnish provides additional protection against corrosion and prevents any subsequent changes in colour in the coating.

Standard
EN ISO 2081

Maximum product dimensions
2,7 x 0,5 x 1,3 m

Purpose/features
An electrochemical process that precipitates a high-gloss and exceptionally smooth tin surface on a product. In addition, the precipitated tin coating features excellent soldering and electrical properties.

This type of coating is ideal as a technical coating solution for electrical and electronic industry appliances.

Choose from rack or barrel plating.

Standard
EN ISO 2093