
In the moulding, painting, and assembly of rigid structural, expanded and/or solid polyurethane products using RIM (Reaction Injection Moulding) technology, intended for a wide variety of industrial sectors.
Our technologically advanced, fully automated facilities can produce moulded components of varying weights.
MATERIALS AND TECHNOLOGY
Our ability to work with different types of polyurethane allows us to design and manufacture a wide range of products with completely different aesthetic and mechanical properties:

Solid rigid structural polyurethane
The polyurethane system used by S4Technology is a compact microcellular technopolymer, also known as “Primary structural” polyurethane for Reaction Injection Moulding (RIM), with a density ranging from 1000 to 1150 kg/m3. Thanks to short demoulding cycles of approximately 90 seconds, it is possible to produce components with thicknesses mainly between 3 and 12 mm, offering a high degree of rigidity and excellent mechanical strength.
Structural rigid polyurethane foam
Medium-density structural rigid polyurethane, also known as “Secondary structural” polyurethane, thanks to its sandwich structure – a compact outer skin with a cellular core – offers multiple design options.
This polyurethane system is ideal for producing large moulded components, ensuring structural robustness, and maintaining the shape of the component without distortions. It also offers good thermal and acoustic insulation properties.
The moulded components can have thicknesses ranging from 4 to 20 mm, with densities between 500 and 700 kg/m3.
Elastomeric polyurethane
Elastomeric polyurethane is used across various industrial sectors due to its high impact resistance at both low and high temperatures. It is a durable, multifunctional material resistant to abrasion, capable of providing high technical, mechanical, and aesthetic performance.
Flame-retardant structural polyurethane
S4Technology can meet specific requirements by formulating raw material mixtures containing additives that give rigid polyurethane particular physicochemical properties, such as its self-extinguishing capability in accordance with UL94.