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8th May 2023, 07:02 PM #1GOLD MEMBER
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What is this stain and can it be removed?
I have this stain that runs through the entire board. Its some sort of gum variety prob just vic ash
Any idea what caused it? Is it possible to bleach/remove/reduce it?
bottom side of board
20230508_161618.jpg
Top side of board
20230508_175024.jpg
oxalic acid? white king?
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8th May 2023 07:02 PM # ADSGoogle Adsense Advertisement
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8th May 2023, 09:42 PM #2
if you bought it recently Id be taking it back, to my ignorant eye it looks like a manufacturer fault
I would love to grow my own food, but I can not find bacon seeds
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8th May 2023, 10:05 PM #3GOLD MEMBER
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Nah didnt buy it recently. It goes all the way through ~40mm thick board. Its about 170mm wide and the stain is maybe 150mm long!
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8th May 2023, 10:14 PM #4GOLD MEMBER
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How do you know it goes all the way through? Is it possible the board was stored on edge and something dripped onto it and ran down both sides?
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8th May 2023, 10:36 PM #5GOLD MEMBER
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This is after planing. Then on the back side I got a chisel and dug in about 3mm.
edit: also you see it down the edge
edit2: I presume something happened to this tree? But I have never seen discolouration go across the grain like that. Pinhole borer sometimes has black dots that run across like this but there is no signs of borer on this part of the board
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9th May 2023, 01:00 PM #6GOLD MEMBER
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I have tried oxalic acid - nope
wondering if i should try lye+peroxide but i feel like I will just get it everywhere
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9th May 2023, 01:01 PM #7
Could it be an iron stain from something like a fencing wire being wrapped around the tree for a long time before it was milled? If it is iron stain oxalic acid might fix it?
Franklin
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9th May 2023, 01:13 PM #8
Wouldn’t be surprised if its sticker stain from when it was racked out during the air drying stage.
Cheers
DJ
ADMIN
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9th May 2023, 01:53 PM #9
I have dealt with similar problems by lightly staining the rest of the piece up to match the dark patches .
Hey Presto !
All gone .
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9th May 2023, 01:59 PM #10
My last comment . That’s after trying all bleaching options .
Oxalic acid and Ammonia and peroxide at different strengths .
A & P could work but you will only know by testing it .
Then it would also have to be worked out at what strength to use it because if it’s to strong it will cause larger dis colouration problems .
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9th May 2023, 02:42 PM #11GOLD MEMBER
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I already have sodium hydroxide/lye can I use that instead of ammonia?
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9th May 2023, 02:44 PM #12GOLD MEMBER
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9th May 2023, 05:52 PM #13
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9th May 2023, 06:37 PM #14
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9th May 2023, 09:10 PM #15GOLD MEMBER
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