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Linimatic — Innovative Die Casting

Denmark’s largest dedicated zinc die-casting foundry. Precision zamak components — manufactured in Denmark, from prototype to series production.

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Finish That Defines the Product

Surface Treatment & Coating

Zinc lends itself well to a wide range of surface treatments, where function, durability and visual appearance can all be tailored to the finished product. At Linimatic we work with experienced surface-treatment specialists in both Denmark and abroad, so we can offer solutions that match your requirements for finish, corrosion protection and application.

Surface treatment can give zinc parts a strong visual appearance, increase durability and protect against corrosion. This makes high-pressure die-cast, surface-treated zinc parts well suited to many different segments, including industry, technical components, furniture, interiors, design and the construction industry.

From raw casting to finished surface

01

Zinc – ideal for demanding surface treatment

High-pressure die-cast zinc parts are well suited to many types of surface treatment, making them a strong choice for technical components with high demands on function and finish. At Linimatic A/S we produce precision die-cast zinc components that, after proper pre-treatment, can be finished with chromate/passivation, Chrome III, powder coating, wet painting and electroplated coatings, among others. The dense structure and good dimensional stability of zinc provide a solid basis for adhesion, corrosion protection and a uniform visual appearance.

02

Treatment Selection

We help you choose the right surface finish based on your wishes and requirements for the surface. Multi-layer treatment is often necessary on zinc (e.g. copper-nickel-chrome) when it comes to the highest cosmetic standards.

03

Process control

During the surface treatment, process-specific requirements for temperature, layer thickness and curing time are followed. The process is continuously monitored and documented, including measurement of coating thickness, to ensure consistent and stable quality across production batches.

04

Quality control

Finished surface-treated products with special finish requirements are, as a rule, subject to 100% visual inspection at Linimatic before delivery. This ensures that the products meet the agreed quality and the desired visual appearance.

Technical Specifications

Available surface finishes

Chrome
Decorative and functional
Passivation
Functional corrosion protection
Powder Coating
Protective and decorative – full RAL range
Wet Paint
Decorative and protective
Delta Seal Black
Corrosion protective, decorative
PVD
Decorative, wear-resistant
Nickel Plating
Decorative, corrosion protective
KTL
Uniform, thin corrosion protection

Surface treatment starts with the casting itself

Linimatic knows the part, the material and the requirements from the casting process itself. That means we can ensure that design, casting, pre-treatment and surface treatment are all aligned with one another. We coordinate the surface treatment with carefully selected and approved subcontractors, and carry out the final quality control and packing at Linimatic. That gives you a single, complete delivery and one accountable partner.

Frequently Asked Questions

What surface treatments can be applied to die-cast zinc?

Die-cast zinc parts can be powder coated, wet painted, chrome plated, nickel plated and passivated, among other options. Before final treatment, parts can be tumbled, vibratory deburred, bead blasted or shot blasted to achieve the desired surface texture.

How do we choose the right surface treatment?

The choice depends on requirements for appearance, corrosion resistance, wear resistance and price. It also matters whether the part will be used indoors or outdoors, and whether it will be exposed to moisture, chemicals or mechanical wear. Linimatic is happy to help find the solution that suits both function and budget.

Is surface treatment always necessary?

No. For certain indoor or hidden components, die-cast zinc can be used without further surface treatment. Treatment is typically chosen when there are specific requirements for appearance, corrosion protection, wear resistance or ease of cleaning.

Can die-cast zinc be powder coated?

Yes. Die-cast zinc parts can be powder coated in a wide range of colours and surface textures. The part's design, casting quality, pre-treatment and curing temperature all affect the final result, so powder coating requirements should be considered as early as the design phase.

Can zinc parts be chrome or nickel plated?

Yes. Die-cast zinc is well suited to electroplated coatings such as copper, nickel and chrome. These treatments can provide both a decorative appearance and functional protection. A good result requires a controlled casting process, proper pre-treatment and a part design suited to the treatment.

Can surface treatment hide marks and unevenness?

Only to a limited extent. A bright or high-gloss coating can actually make small imperfections more visible. High cosmetic requirements therefore need to be considered in the part's design, the die, the casting process and the mechanical pre-treatment.

Does the part need to be specially designed for surface treatment?

It can be a major advantage. Hanging points, contact surfaces, threads, tolerances, drainage of process fluids, and areas that must not be coated should be clarified early on. Early dialogue can prevent problems and reduce the need for rework.

Can Linimatic deliver parts fully surface-treated?

Yes. Linimatic manages the entire process, from casting and in-house post-processing to the desired external surface treatment. The coating itself is carried out by carefully selected and approved subcontractors. Final quality control and packing are done at Linimatic, so the customer receives a complete, delivery-ready solution.

Related Services

High-Pressure Die CastingQuality & Inspection

Need a specific finish?

Tell us your surface requirements — decorative, functional, or both — and we’ll recommend the right treatment for your application and volume.

Discuss Surface Options+45 4876 4040