How a handle is created: galvanic treatments and finishing

We’ll start with bronzing, a process that can give a lot of elegance to details. In the bronzing process, the parts are washed, sanded and then attached to frames and immersed in a special solution at a constant temperature. The bronzing process gives the handle a colour that is similar to bronze with colours that can have different shades.

The next step is drying and shading, performed manually in order to create the desired colour contrast and bring out the artisan taste of our handles.

The last step is painting, to protect the bronze finish and avoid chemical reactions that could cause alteration if in contact with air.

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We’ll now take a look at the chrome, nickel and gold plating finishes. After electrolytic degreasing, the pieces are hung on special frames and immersed in tanks where a thin layer of chrome, nickel or gold is deposited by means of an electrochemical process. Metals that, in addition to giving the decisive connotation to the handle, give it an excellent corrosion resistance and a pleasant appearance.

In the case of polished chrome or gold plated finishes, the product is sent to the galvanic treatment already brushed and revived. For the satin chrome or satin nickel finishes, before going to the galvanic treatment, the satin finish is performed by hand using abrasive flap discs.

The galvanic treatment is preceded by an accurate washing of the pieces to eliminate residual fats and involves different procedures depending on whether the handle is made of zamak or brass.

Before being chrome or gold plated, the zamak must be coppered to acquire sealing. An intermediate step that is not necessary for brass, which after nickel plating can go directly to chrome plating or gold plating.

An exemplary result proven by the certification EN 1906:2012 obtained by Linea Calì. This important acknowledgment certifies the durability and corrosion resistance of our handles.

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