aluminium

great shot

Queensland Alumina Limited (QAL) is one of the largest alumina refineries by alumina production capacity in the world,[1][2] located in Parsons Point, Gladstone, Queensland, Australia. The refinery was planned in 1964[3] and has been operating since 1967,[4] the refinery has the capacity to produce 3.95 million tonnes of alumina a year. In 1981 the output was at a quarterly basis over 600,000 tonnes per quarter.[5] At times of lower demand, operations have been altered.[6][7] Subsequent rises in demand have seen an expansion in output and employment.[8] QAL has been operated by a range of consortium partners of international aluminum producers over time. Comalco was brought into the consortium in 1969.[9] In 1982 it was owned by Comalco (30.3%), Kaiser Aluminum (28.3%), Alcan (21.4%), and Pechiney Ugine Kuhlmann (20%).[10] Since April 2005, it has been owned by Rio Tinto Alcan (80%) and Rusal (20%).[11] In September 2017 the QAL celebrated 50 years of operation. Source: en.wikipedia.org/wiki/Queensland_Alumina_Limited

Is this the final paint color? Or just some kind of primer kote?

No, it's a zinc dichromate primer. On the interiors of it was often a pea green color. Quite toxic I think , but good a protecting the metal.

This series of pictures are B-24 Bombers and I think at this point in the process, we are seeing the final color of that front cowling as it is called. Lots of these planes went out the door with bare metal on the exterior parts. I could be wrong.

Greenhorns: In all actuality, WWII planes' paint jobs final touch were often applied with "Kilroy was here," or some such personalized, decompensating brush stroke. 10-4, over and out. Pete Moss musicians, please to be making the noises, now.

Airplane Engines now replaced by Jet Engines..the latest news has been about "missing parts"..or installing "broken" parts..//??//War&Peace.