Special coatings for fasteners

Special coatings for fasteners protect the components and improve performance for guaranteed durability and resistance in any project.

We offer a protective coating service to prevent corrosion and improve performance, ensuring long-lasting protection against the most adverse environmental conditions.

Benefits of the special coatings service

Types of special coatings

Our coatings service provides a protective treatment, either by electroplating or immersion.

Electrolytic coatings:

Zinc Cr(III)

This process applies a thin layer of zinc, allowing the addition of a sealant to improve resistance to red and white rust. 

Dichromate Cr(III)

An electroplated zinc coating with an iridescent yellow finish. Substitute for the old Dichromate Cr(VI). Offers high levels of protection against corrosion and complies with environmental regulations. 

Zinc Nickel

An electrolytic zinc-nickel alloy coating, 12-16% nickel, which provides even greater protection against corrosion. With the application of a sealant, corrosion resistance can exceed 1,000 hours in a salt fog chamber.

Immersion coatings:

Zinc flake

An inorganic coating of zinc and aluminium flakes that provides good protection against corrosion and hydrogen embrittlement. Its corrosion resistance varies between 500 and 1,000 hours in a salt fog chamber. Available brands include Delta Protekt®, Dacromet® and Geomet®. 

HDG

This is also known as Hot-Dip Galvanisation. This process involves immersing the parts in a bath of melted zinc at high temperatures (470 ºC to 520 ºC). The corrosion resistance depends on the thickness of the coating, in accordance with ISO 10684, and the environment that the fasteners are exposed to.

Sectors

The special coatings service is available for various sectors, including:

Our special coatings service is ideal to ensure maximum protection and performance for your fastener components. Contact our sales team to learn how we can assist you in your projects.

Special coatings for fasteners

Benefits of the special coatings service

Provides protection against corrosion

Delivers a final product ready to use

Prevents seized fasteners

Reduces friction

Bespoke solutions available