Staedtler 236-3, also known by the alternate description 2521097, is a addition to Staedtler's range of special purpose markers, featuring a permanent blue ink formulated for precision and durability on non-porous surfaces. The Lumocolor chalk marker employs a robust ink system that adheres reliably to materials such as glass, metal, and plastic, making it ideal for industrial settings where permanent markings are necessary. Its fine tip and consistent ink flow ensure high visibility and precision, crucial for quality control processes and technical drawings. This marker provides a reliable solution for engineers requiring permanent labelling and annotation in various design and production environments. https://elecena.pl/product/29568427/staedtler-236-3-lumocolor-chalk-marker-permanent-blue-special-purpose 2025-12-05 https://elecena.pl/product/29568427/staedtler-236-3-lumocolor-chalk-marker-permanent-blue-special-purpose 2026-07-02