Re: ATSF Mineral Brown
It may be apocryphal, but I was told that early CB&Q paint shop instructions for mixing mineral red (the Q called it Indian Red) was by the number of handfuls of the red pigment they mined in Wyoming per volume of base paint being mixed. Not precise by any means. At lease the pigment color was relatively consistent, having been mined at one location. The geological name of the crushed rock used escapes me.
From: main@RealSTMFC.groups.io [mailto:main@RealSTMFC.groups.io] On Behalf Of Tony Thompson
Sent: Saturday, May 30, 2020 12:23 PM
Subject: Re: [RealSTMFC] ATSF Mineral Brown
Roger Huber wrote:
Good point, Roger. I recall the retired PFE Chief Mechanical Officer telling me about the PFE representatives at manufacturing plants, who had to decide, on the basis of color drift panels in their possession, if a paint being applied by a builder was "close enough" to the color drift. They had to use their judgement because there were always variations from any paint company.