| Material | Application | Product | Etching Solution |
| Aluminium Aluminium alloy | Photochemical
milling Name and typeplates scales; dials |
Rockyphot
S Rockyphot GN 20 Granophot T |
Sodium hydroxide
solution (Caustic soda solution) |
| Anodize aluminium | Name and typeplates Decorative outlines Photochemical milling |
Rockyphot
S Rockyphot GN20 Granophot T |
Sodium hydroxide
solution; Chromo-phosphoric acid For specially strong anodize aluminium layer tin-chloride Paste (heat).Deep-etching with ferric-chloride |
| Chromium | Name and typeplates Decoration Electronic circuits |
Granophot
T Rockyphot GN 20 |
For thin chromium
layer a mixture of ferric-chloride and ferric-hydroxide For electrolytic put on chromium layer conc. Nitric acid or a mixture of ferric-chloride and hydrochloric acid |
| Spring-steel cross-bands | Photo manufacture smaller formparts | Granophot
T Rockyphot GN 20 |
Ferric-chloride
at 36° to 42° Bé at 35 °C to 50 °C |
| Glass Fine line etching |
Pr”zisionsskalen Dials Crosshair |
Granophot
T Rockyphot GN 20 |
Hydrofluoric acid or other suitable etching mediums |
| Glass and ceramics | Nameplates Scales Decoration |
Rockyphot
GN 20 + Granophot T |
Hydrofluoric acid or other suitable etching mediums |
| Gold | Etched switching Working of jewellery Thin films switching |
Granophot T | Aqua regia (3 parts of hydrochloric acid + 1 part of nitric acid) |
| Hypern | Photochemical
milling Photo manufacture smaller formparts |
Granophot T | Ferric-chloride at 36° to 42° Bé |
| Kovar | Photo manufacture Chemical milling |
Rockyphot
S, K, XN, GN 20 Granophot T |
Chromo-sulphuric acid Ferric-chloride at 42° Bé |
| Copper and alloy | Etched switching Photo manufacture Nameplates; Coinings Architectural Decoration |
Rockyphot
S, K, XN, GN 20 Granophot T |
Ferric-chloride at 36° to 42° Bé |
| Magnesium |
Photochemical milling Anodize aluminium and Nameplates Printing plates; Decoration |
Rockyphot
S, K, XN, GN 20 Granophot T |
Nitric acid solution in different thinnings |
| Molybdenum | Thin films
switching Photo manufacture Photochemical milling |
Granophot T | Mixtures of potassiumhexacyanoferrats |
| Nickel and magnetic Nickel alloy | Etched switching Photo manufacture smaller formparts Thin films switching |
Granophot T | Ferric-chloride at 36° to 42° Bé |
| Platin | Thin films
switching Photo manufacture; surface working of jewellery |
Granophot T | Aqua regia (3 parts of hydrochloric acid + 1 part of nitric acid) |
| Stainless steel | Photochemical
milling Photo manufacture smaller formparts Etched switching Name-and typeplates Scales; Decorations |
Granophot
T Rockyphot GN 20 |
Ferric-chloride at 36° to 42° Bé at 35 °C to 50 °C |
| Silver | Etched switching Name and typeplates Decorative working Working of jewellery |
Granophot T | Ferric-III-nitrate |
| Steel | Tool; Engraving;
Stamps Photo manufacture smaller formparts Chemical milling |
Granophot T | Ferric-chloride at 36° to 42° Bé at 35 °C to 50 °C |
| Titan | Photochemical milling Photo manufacture smaller formparts | Granophot T | Hydrofluric acid Ammoniumdihydrogenfluoride 4 - 6 % |
| Zinc | Name and typeplates;
Scales; Photo manufacture smaller formparts; Printing plates |
Kopa + Printa + Kopaplast + Printaplast | Nitric acid solution in different thinnings |
