Segede Industrie, a champion of Zamak according to Expérience Zamak
10 February 2026On June 29 and 30, Segede exhibited at Paris Packaging Week 2022.
10 February 2026What is Zamak?
An alloy made entirely from natural minerals, Zamak is composed of 95% Zinc, with Aluminum, Magnesium and Copper making up the remaining 3%. 100% infinitely recyclable, it is the ideal raw material for eco-responsible packaging.
Particularly well suited to high-pressure die casting, Zamak offers excellent mechanical properties, very good castability, dimensional stability, decorative versatility, corrosion resistance and high production rates. These characteristics make it a competitive and reliable solution for designers and manufacturers.
Zamak also benefits from optimal recyclability, as it can be reused 100% through the recycling of end-of-life products while fully retaining its properties. In doing so, it contributes to a more responsible use of raw materials.
Zamak properties
Mechanical strength
At room temperature, the yield strength of zinc alloys is significantly higher than that of aluminum and magnesium alloys, as well as that of the most resistant plastics.
Resistance to deformation
Zamak is recognized as a rigid material. Its resistance to shear, torsion, bending and compression is high. Combined with its mechanical strength, these properties make it possible to reduce part volumes, resulting in weight and space savings.
Resilience and ductility
High impact resistance and good ductility are intrinsic qualities of Zamak—qualities that are less commonly found in other die-cast alloys. Ductility is particularly important for post-casting operations such as riveting and crimping. Its impact resistance (resilience) allows Zamak to be used in demanding operating conditions.
Hardness
Zinc alloys, such as Zamak, are harder than aluminum or magnesium alloys. Alloying elements such as copper further improve wear resistance.
Fatigue resistance
Fatigue resistance is a key criterion in material selection, as fatigue failure is the most common cause of mechanical part breakage. Zamak exhibits fatigue resistance seven to ten times higher than ABS-type plastics.
Why choose Zamak?
Zamak is a technical, durable and cost-effective material. No other alloy offers such a strong combination of mechanical strength and recyclability under competitive economic conditions.
Zamak’s excellent castability makes it possible to produce aesthetic and complex parts that enhance the value of the end product. These functional components can often be molded as a single piece, eliminating the need for assembly operations.
Recent advances in injection technologies, combined with precise tooling design, allow for very thin walls, directly reducing material consumption and transport weight.
The physical properties of Zamak enable the use of smaller hot-chamber die-casting machines operating at higher production rates, consuming less energy thanks to its low melting temperature, and requiring far less frequent maintenance of wear parts. This also ensures a much longer tooling lifespan, which can reach one million cycles or more, depending on tooling complexity.