The AXIX sinks are manufactured to the same exacting standard of every 1810 sink, using 1.2mm, 304 grade stainless steel. A PVD finish in Copper, Gunmetal or Gold Brass is also available. PVD is a process used to create a very durable, corrosion and tarnish free finish. PVD is extremely durable but not invincible, scratches will appear as they do with stainless steel but will also develop a patina over time. All sinks have protective powder coating on the underside (Insusound) which insulates helping to retain the heat of the water in the bowl whilst also reducing noise if a waste disposer is fitted. A full maxmiser plumbing kit, basket strainer waste and colour match drain cover is also supplied providing all parts required for any sink installation. All sinks are tested to BS EN 13310: 2003 / BS EN 13310: 2015 and are CE certified. AXIX is backed by The 1810 Company 75 year guarantee that warrants the sinks to be free of manufacturing defects in material and workmanship under normal usage. The Gemini Worktops material warranties on Gemini Quartz and Gemini Solid Surface are also applicable for the surface material.