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 Post subject: Repairing dents on the surface of a go board // wax or oil?
Post #1 Posted: Tue Sep 20, 2016 12:44 pm 
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Things happen that are out of your control, and now you have a dent on the surface of your beloved Goban. What do you do?

Do you dare to apply the drop of water and heat method described here?
Do you leave it be?
Do you use a mortar and pestle to crush up almonds and push that powder into the dent?

I'm also wondering whether wax or board oil would be best to apply to the top of the board. If anyone here has experience with this, I would appreciate it.

I have already read the GGG post on oiling the board and the post on L19 by Jujube who applied oil per that recommendation. The result was pretty good, but Kurokigoishi sells board wax, so I'm wondering which is better.

(Separately, in conjunction with purchasing a Paulownia Box for my board, I inquired to Kuroki about the above dent issue and will post what they respond with here for everyone's benefit.)

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Last edited by Koosh on Wed Sep 28, 2016 7:01 am, edited 2 times in total.
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 Post subject: Re: Repairing dents on the surface of a go board // wax or o
Post #2 Posted: Wed Sep 21, 2016 12:30 pm 
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I'll start by suggesting a course of action; I could start by dumping a bowl of go stones on the head of the culprit. :mrgreen:

Wonder if that's ever happened before?

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 Post subject: Re: Repairing dents on the surface of a go board // wax or o
Post #3 Posted: Wed Sep 21, 2016 12:56 pm 
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I've tried the water/steam method with fair results on shin-kaya and what I think is katsura. Neither went back to an un-noticeable state, but the dent was less prominent.

Oil on a board isn't appealing to me, because I don't want to get oil on my stones; but a _very_ thin coat of wax on an old board has turned out nicely, and I'll probably look into actual goban wax at some point down the line.


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 Post subject: Re: Repairing dents on the surface of a go board // wax or o
Post #4 Posted: Wed Sep 21, 2016 9:23 pm 
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@fireproof: Thanks for the comment. I hesitate to apply heat to the top of the board, but I'm tempted to put a drop of water into the dent and see if it rises. Is this what you did, or did you apply heat/hot water? I'm wondering how I would even go about applying heat to a single square instead of a large area (such as with an iron).

Kurokigoishiten got back to me about this. I asked if any of the methods I mentioned above were used by the craftsman to repair dents and received a reply about how it would be a difficult repair to do for someone who doesn't normally work with Go boards. I presume this means they would take a layer off the board and then redo the lines.

I guess this would be the way to restore a badly damaged go board, but I can't imagine doing it with a single dent.

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 Post subject: Re: Repairing dents on the surface of a go board // wax or o
Post #5 Posted: Thu Sep 22, 2016 6:19 am 
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Wax ---- I suspect what is meant by that isn't "waxing the board" but using suitable "furniture repair wax" designed to fill scratches. These can usually be mixed for color matching and might be the best way to attempt to deal with an isolated bad dent. But that spot will not be as hard as the rest of the surface and will redent if hit right there.

I am not an expert with that sort of stuff. But I suspect from my "materials" knowledge of waxes that the ones that can be applied room temperature will remain softer than the ones that have to be heated/warmed before applying. In other words, you might not want the one "easy to apply". I'd read up on this first << antique furniture repair >>

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 Post subject: Re: Repairing dents on the surface of a go board // wax or o
Post #6 Posted: Thu Sep 22, 2016 7:09 am 
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@mike - thanks for commenting.
The wax that I was considering for repair of the surface is below.
http://shop.kurokigoishi.co.jp/en/item/320

Since the site describes it as a glossing wax for Go and Shogi boards, I think I was planning to simply wax the board, as you've put it. This is separate from the dent.

For the dent, what I wanted to do was to either use some sort of filler before waxing the top of the board, or apply a drop of water inside the dent to try to get it to rise a bit. I don't want to apply heat to the board because I have no idea how it'll affect the ink used for the lines.

Checking into antique furniture repair is a good idea. If I can find a relevant video tutorial or website on fixing similar dents, I'll post it here.

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 Post subject: Re: Repairing dents on the surface of a go board // wax or o
Post #7 Posted: Thu Sep 22, 2016 9:25 am 
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I found a website that details the use of the water/steam method on a guitar body. Given the fine grain of the guitar body, I think this is pretty close to the type of technique needed for my go board.

I had to visit the Wayback Machine to see these photographs since the links had broken long ago. Here's the full article with photographs.
http://www.evernote.com/l/AMiRXYS9wIdLTIAxdxHig2H8Xq6mOlAWbOU/

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 Post subject: Re: Repairing dents on the surface of a go board // wax or o
Post #8 Posted: Thu Sep 22, 2016 10:23 am 
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A very skilled wood worker could cut out around the dent and replace the wood taken out with wood whose color and grain match the wood of the board. Such a repair can be invisible but it is a very high skill sort of thing. If you are willing to pay some money to get it repaired, Kuroki Goishiten does repairs but you would have to ship the board to Japan. In the picture it looks like the dent broke through the surface, breaking the wood fibers there. The dent does not impinge or break the lines, as I recall, so the board is perfectly usable. Go boards just get dented as part of normal use. Even dropping a stone on the surface can dent it. As you use the board the dent will just become part of the patina of use.

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 Post subject: Re: Repairing dents on the surface of a go board // wax or o
Post #9 Posted: Thu Sep 22, 2016 3:10 pm 
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gowan wrote:
As you use the board the dent will just become part of the patina of use.

Good point -- and the patina of use can be really beautiful: https://designmind.frogdesign.com/2011/09/aged-perfection/

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 Post subject: Repairing dents on the surface of a go board // wax or oil?
Post #10 Posted: Fri Sep 23, 2016 3:23 pm 
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I don't think oil and wax will really make the dent less noticeable, in fact it could darken it.

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 Post subject: Re: Repairing dents on the surface of a go board // wax or o
Post #11 Posted: Wed Sep 28, 2016 8:30 am 
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I'm all for patina of use, but this one is a single deep dent in an otherwise well looked after board. It is a dent that cannot be ignored. It stares at me from across the room. :evil:

Kurokigoishiten just posted a video on youtube and on their website giving the step-by-step process on how to treat your go board using Japan Vegetable Wax. The general idea is to apply it while hot because it hardens soon after contacting the board (it has a high melting point; 45-55C).

Click here for video

I almost have all of the information that I need to attempt the repair and will post more information when it's completed.

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 Post subject: Re: Repairing dents on the surface of a go board // wax or o
Post #12 Posted: Wed Sep 28, 2016 11:34 am 
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Koosh wrote:
Kurokigoishiten just posted a video on youtube and on their website giving the step-by-step process on how to treat your go board using Japan Vegetable Wax.


Someone was kind enough to transcribe the video into English. You can read that transcription here.

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Post #13 Posted: Wed Sep 28, 2016 2:47 pm 
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 Post subject: Re: Repairing dents on the surface of a go board // wax or o
Post #14 Posted: Wed Sep 28, 2016 2:58 pm 
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From reddit:
Quote:
This is vegetable wax.
Use a hair dryer or electric range to slowly melt the wax.
Make this kind of round shape out of cloth.
As the wax melts, spread it on the cloth.
And here's how you do it with a hair dryer.
[1:00]
Then apply heat again to the waxed cloth, with electric range or hair dryer.
If you don't heat the waxed cloth enough, it will harden too fast when you apply it to the go board.
Then apply it to the go board like this. If it starts to harden, heat it again.
If the wax on the cloth runs low, heat some more from the block and apply it to the cloth again.
[subtitle: Proceed little by little, heating the cloth when necessary and applying more wax to the cloth when needed. Repeat.]
[3:00]
Lastly, use a clean, dry, white cloth. White is best. Polish the board. [subtitle: The trick is to not rub too hard.]
Here's what it looks like when it's done. [subtitle: When you finish polishing it, it should look glossy. It's not only beautiful, but protected from scratches and damage.]
[subtitle: Do the sides in the same way as the top.]
I recommend doing one side at a time (wax, then polish).
And here's the finished product.


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 Post subject: Re: Repairing dents on the surface of a go board // wax or o
Post #15 Posted: Sun Oct 16, 2016 12:02 pm 
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I came across a totally unrelated tip to repair dents and scratches in wooden floors.
A trick might be to crush a walnut. Put it in the dent/scratch, and then oil/wax it.
Anyone here familiar with this, or did this already?

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