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Protecting lead ?

W

WWC

Anyone any ideas on protecting lead from discoloration from using hypochlorite ? I.e. lead flashing or roof valleys ?

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I thought I had a customer that has discoloured lead for some time - over a year because of hypochlorite ? Maybe that isn't what caused it.

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I've not been doing this long enough to comment on long term but ..

It goes brown first then the Brown dissapears in hours

 
I've not been doing this long enough to comment on long term but ..It goes brown first then the Brown dissapears in hours

Doesn't go away. This is my porch I done a test around last May. Like. That ain't going no where

 
Oxalic Acid can be used for rust stains, never tried it on lead though and its dangerous stuff! ive used 2% hypo on lead many times without any stains

 

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