supply of epoxy zinc phosphate primer (two pack)epoxy zinc phosphate primer (two pack),epoxy zinc phosphate primer (two pack) to rdso specification no.m&c/pcn/100/2018 chapter ii rdso amendment no.1b as an additional requirement. (1) shelf life min.12 months (2) the primer shall be packed in 20 liters (dual containers) new non-returnable m.s. drums to is: 2552:1989 with amendment no.1 grade-b2. (3) type of paint, manufacturing date and shelf-life of paint shall be marked indelibly in large letters on a side of the each drum, colour: - self standard red oxide or grey [ warranty period: 30 months after the date of delivery ]