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Thread: applying urushi on natural stones

  1. #1
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    applying urushi on natural stones

    I've got several Japanese naturals and I've ordered some urushi to coat the sides and maybe the bottom on some of my stones. I'm wondering about other people's experiences with this?

    Some of my stones have no lacquer, etc, on them now, so no problem and I should be able to just go ahead and apply the urushi. However, others already have a kind of shellac. If I decide to apply urushi on these too, I'm not sure if I should first attempt to sand off some of the shellac or not. If not then the urushi might not adhere as well?

    Naturally, I'd like to avoid trying to remove any shellac if possible - more work and there's also the possibility of damaging the stones; I suppose sanding would be the only option. On the other hand, I don't want to experiment too much and waste the urushi.

    The other thing I thought someone might have an opinion on is whether to coat the bottom of the stones as well. Often this seems to be done, but I've also read that traditionally urushi might just be applied to the sides of naturals. Extra protection if the bottom is coated, of course, but if the bottom is pretty strong and stable it might not be needed and I was thinking that not having urushi down there might allow the stone to breathe better and dry out well.

    Thanks for any thoughts on this.

  2. #2
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    Sorry for the off-topic response, but can you share where you get urushi?

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    I was in Japan recently but really couldn't find any. There are a few places online that are mentioned in old threads here:

    http://www.mejiro-japan.com/products...urushi-lacquer
    http://www.namikawa-ltd.co.jp/cgi/it...i?cate=14&no=3
    http://www.hyper-cafe.com/index.php?l=product_list&c=12

    However, they are on the expensive side. You can find some through Amazon. And for the lowest prices, just search for 漆 on Ratuken or Amazon Japan, etc.

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    I really wish John would just start stocking this stuff it should be relatively easy for him....hint hint

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    I found out that in US is actually forbidden to sell real Urushi as it is very toxic I read it on some sword forums. Maybe i am wrong ??
    But some do sell cashew, still it have to be shipped special with grownd shipping.

    I apply my Urushi just with a brush. One layer thats it dry for 24 hrs

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    Maxim - what do you think of my question above, if it is good to apply urushi to a stone that already has shellac or lacquer on it. And if so, should some of that be sanded off first?

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    I dont know. Never try it on shellac

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    Quote Originally Posted by maxim View Post
    I found out that in US is actually forbidden to sell real Urushi as it is very toxic I read it on some sword forums. Maybe i am wrong ??
    But some do sell cashew, still it have to be shipped special with grownd shipping.

    I apply my Urushi just with a brush. One layer thats it dry for 24 hrs

    I seen the same info but I'm not sure if I believe it? I can't find anything outside of various types of forum chatter that says it's the case. There are other Artist supplies readily available in the states that are far more Toxic that come to mind. www.hyper-cafe.com I think went out of business?? I haven't Ben blue to get there websight to open for about a year or so, maybe it's my browser?

    As for the question about going over old lacquer.
    I don't know why you would want to do this? Is the old lacquer chipped, or are you just wanting to redo it in a more traditional way?
    either way my suggestion if you're going to go over the old finish is to remove it if possible with it appropriate solvent I.E. Denatured alcohol for Shellac. If the finish is one that can't/won't some what easily "wash off" like shellac will(epoxy comes to mind) then just "scratch up" the old finish with sand paper, no need to remove it by sanding it off it it already attached to the stone well.

  9. #9
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    That will be nice to find out what is regulations is for those stuff. I got shipped Urushi to me from Japan with no problem. And yeah i think also there is many more toxic stuff out there then Urushi that been sold

  10. #10
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    Quote Originally Posted by maxim View Post
    I found out that in US is actually forbidden to sell real Urushi as it is very toxic I read it on some sword forums. Maybe i am wrong ??
    That's too bad if you have a lot of US customers, as I said you might consider selling some yourself. However, maybe you still can? Just display a note with the urushi that this product cannot be shipped to the US.

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