Man that's some bad stuff.Oxalic acid
I agree with this guy.Just my opinion, but I think it looks great.
What concentration or product would you recommend? I’d like to try it. Certainly makes sense as a wood cleaning acid and should be safer than alcohols for use on varnishes.Oxalic acid
The photo should be color balanced as it was made by a pro.This is the pipe. Of course I will have to see it to decide what to do. I like the aged look but its a bit splotchy and top areas a bit dark. I want to retain the worn look but not all of it. With just a photo its hard to know just exactly what color thing are and how they look. Its an old Il Duca
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Probably more like this but you can tell it was clipped from another image.The photo should be color balanced as it was made by a pro.
Edit: I missed your remarks on quality. I thought it looked like a properly done photo in a good shop.
Love to see your photos when you get it. Just be gentle with it; the walls appear thin, and there's some oddity (growth?) in the dark band from near the shank to the rim.
Unless the original OP image is the exact color of the pipe.I'd now guess neither image has correct color balance.
I sure hope that's the case with this one, and bet it is!You really won’t know anything until you have it in hand.
P.S. Often times they look better in hand they do in photos.
It is - full precautions should be taken.Man that's some bad stuff.
It's been years since I used it. It's great for removing dark streaks from oak and is used for that in furniture restoration. As Chasing mentioned, it's quite nasty stuff - but it works...What concentration or product would you recommend? I’d like to try it. Certainly makes sense as a wood cleaning acid and should be safer than alcohols for use on varnishes.