D3 System has for a long time tested products for stripping varnish on metal parts. We are currently testing a product that can strip metal and aluminum simultaneously, without deforming the aluminum parts; typically nozzles and air caps for spray guns.
Our strippers are mixed in a ratio of 1:1 (ordinary water) and used in plants at a temperature of 70-80oC for approximately 4 hours.
This applies to all kinds of lacquered parts in different sizes. With mechanical brushes or nozzles, it promotes the speed of the process.