M4A Aluminium Label Etching Set
|Set consists of one bottle of etching fluid (M4) + one Engrave It tool (M8).
Simply scratch away the anodised surface of the aluminium with the engraving tool (requires 2 x AA batteries), paint the surface with the etching fluid or "ink" and a chemical reaction then takes place depositing black writing in the engraving but leaving the still anodised surfaces unaffected. This writing will be very stable outside we believe but we have only just (Feb 2012)tried out the process and so it has not been subjected to the test of time and weather.
NB The "ink" contains, amongst other things, Hydrochloric Acid so store safely and keep out of reach of children. It comes with a full material safety data sheet.