Question

_______ is the final step in tinplating.

(a) De-oiling

(b) Activating

(c) Passivating

(d) Oiling

I have been asked this question by my school principal while I was bunking the class.

My question is taken from Manufacture of Tinplate topic in section Metal Packaging Materials of Food Packaging Technology

Answer 1

The correct option is (d) Oiling

The best explanation: After tinplating, the plate is given a light oiling. It is obviously essential that the oil used is approved for use in food packaging; cotton seed oil was used for many years but this has now been largely superseded by dioctyl sebacate (DOS).