the colour of the helmet model KNIL was related to the colour used by the equipment of KNIL artillery
The different shades of this colourscheme was reason enough to investigate the best method for painting. With other words, workers first had to learn how to handle a proper method for this kind of painting. The paint used for this work was a duco paint (like Hammarite) and when inproper sprayed on the steel and exposed to the tropical sun, this could lead to serious disturbances in shade. A lot of tests were being started to find out the best method for sealing the helmet against tropical influence. According to my opinion the later produced helmets for KNIL made by Milsco(USA)are the best in appearance.