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@hebdy
I have a very stuck seatpost - having tried all manual methods I am now about to resort to caustic soda method. I understand this process well having done it before - but I have a question.
The frame in question is made of Ishiwata 017 tubing **silver brazed - **will the caustic soda cause damage to the brazing at all? Sorry if this is a stupid questiuon but really want to keep this frame in top condition.
Thanks in advance,