Textures make steel surfaces water-repellent


Sirris made steel surfaces water-repellent by applying texture to the surface by means of its femtosecond laser. This technology opens up several possibilities for the functionalization of metal surfaces.

For many applications, a form of water resistance (hydrophobicity) is desirable or even essential. This is because a considerable number of interesting functionalities are derived from this property. Just consider self-cleaning surfaces, where dust particles are rinsed away with the drops of water or anti-biofouling surfaces that help prevent bacterial growth by preventing water from forming a film for a prolonged period.

Sirris has recently made steel surfaces water-repellent by means of its Lasea LS5-1 femtosecond laser texturer (316L and classic die steel) by applying a texture. Classic polished stainless steel has an average contact angle of 75 °, while with the aid of a texture, contact angles of 145 ° and more are possible. This functionality is durable and survives a cleaning cycle with, for example, ethanol, and can also be applied to surfaces that are cured (for example, by laser hardening). The flexibility and scalability of a laser also allows complex, large parts to be selectively and quickly made water-repellent.

This technology is applicable to a wide range of metals, ranging from titanium and brass to stainless steel and die steel to powder metallurgy metals used, for example, in 3D printing (additive manufacturing).

Do you have questions about the possibilities of laser texturing? Come to the official presentation of our femtosecond laser on 13 June and learn all about its properties and possibilities! More info and the registration form for this unique event is available in the agenda