Acid Etch

Acid Etch is Numartis' most controlled surface technique — a chemical etching process that removes glass surface at precise depths to create a range of textures from fine frost to deep relief. Unlike mechanical sandblasting, acid etching produces a surface with no embedded abrasive particles, resulting in a perfectly clean texture that is safe, durable, and non-porous.

The technique is applied through resist masking to create patterns of any geometric or organic complexity — from fine line work to large-area field etching. The etch depth determines the surface character: at 0.1mm, the result is a pure frost; at 0.5mm, a soft relief begins to emerge; at 1mm and above, the surface gains sculptural dimensionality. Available in custom patterns for bespoke commissions.