There are different methods of pre-treatment as well, like the dip in tanks and the spray on the job methods. But either which way, we have to promptly deal with the oil that gets removed by the de-rusting process and the sludge that gets accumulated by the degreasing process.

‘Get me data’ works well to manage the variables in chemical concentration and purity. But the commitment in the chemist to work with and through these inputs would be directly proportional to the quality of phosphate coating on the bare metal.

Experience in dealing with these situations is critical for the right results. People have attempted automating these procedures for a shop. Where variables in the input material quality is predictable. This is where standardization could lead to systematization and therefore simplication.

There is another ocean of learning with respect to powder coating infrastructure, oven types, batch and continuous process and so on. Every decision that gets mooted has its own pros and cons on techno commericals.

End of day, the discerning customer looks for how the sheet steel enclosure is validated for what is called, the ‘salt spray test’. Whether the enclosure withstands 500 hours or 1,000 hours or more of salt spray would decide its harsh weather withstanding capability.

So,next time you buy an enclosure for a solar application or otherwise, think of the thought, time, energy, specifications and money that went into the making of what the customer would expect as a long lasting, trouble-free and corrosion resistant enclosure solution.