We need to assemble and weld many pieces to construct 3500 weldments. The final weldments are approximately 25'L X 4'W x 6"H and are mild steel (A36). They look somewhat like a car frame when completed. These units need to be complete in 6 months which is the equivalent of 19 units per day, 7 days per week. We are exploring the idea of painting these units ourselves rather than subcontracting the work to professional painters.

The only information we have is that the paint must be water based, 50-60 microns thick, and green in color. We don't know if the steel is clean or dirty. Obviously there are many questions we will need to ask the customer.

We do not have any painters or a paint booth. In fact paint is not our area of expertise. We are fabricators. We don't even know where to start my research.

Questions
1) Are there painting experts out there that we could consult with that will tell us the most economical and practical way to roll out this project?
2) Do you have any good sources or website where we could start our research? I.e. should we air dry or use an oven? Do we need to invest in a painting booth? What kind of paint? Do we need primer?

Thanks