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87County
4th August 2010, 03:28 PM
Prior to painting a ute-back Ser 3 LWB, I have removed the gal cappings and would like to brighten the surface up as it has that white surface powdery finish now.

Can it be acid/alkali bathed to restore ?

Or is it better just to wire brush & etch prime it and then give it a coat of paint or cold gal?

.... thanks - Laurie

isuzurover
4th August 2010, 03:47 PM
Best option is to get them re-galvanised.

Otherwise, a wire brush/steelo and vinegar - or some weak acid. However by doing this you will be reducing the lifetime of the gal by a small amount.

Phosphoric acid or undiluted degreaser will likely make it whiter.