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Acid degreasing additive for galvanizing process

March 10, 2011

Dear Sir,
I would like to know the significance of adding acid based pickling & degreasing additive to HCl in galvanising process.
process is like this:
Tank 1. HCl + degreasing additive (acidic)
Tank 2. HCl pickling
Tank 3 Rinse
Tank 4 Fluxing
Tank 5 Galvanizing kettle.

What is the benefit of adding degreasing additive in tank 1.

Regards

Sheeba Fadi

Sheeba Fadi
industrialist - India

Are you post fabrication hot dip galv? or continuous strip galv?

If the former, then you need degreaser in each acid tank, and you probably need more than 2 tanks.

Geoff Crowley
Crithwood Ltd.
Westfield, Scotland, UK

March 11, 2011

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