sudnak said

Wooden Tea Boat Finishes

Hello Tea Folk,
I am a woodworker and long time tea drinker. I would love to make some wooden tea boats to be used in ceremony, but I have not been able to find a finish that would resist the heat and moisture. Does anyone have any idea as to what is used to seal the wooden tea ware that we use?

11 Replies
mrmopar said

I think most is from bamboo. Have you thought about a wood from a tropical climate like mahogany?

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sudnak said

Yes, the type of wood helps. Hardwoods such as mahogany do better with high heat and water, and bamboo does decently, but most are still coated with some sort of sealant. I am trying to find out if they are using a pre-catalyzed lacquer, a urethane, etc.

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mrmopar said

sorry this was a double post.

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sudnak said

Yes, mahogany is nice. However, it is not the wood type I am seeking, but a sealant for the wood so I can use multiple types of wood.

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A friend of ours is a carpenter and helped us turn a piece of fallen walnut into a tea table. Walnut is the hardwood used most often in China for tea boards (giant tea tables made from the upturned roots of fallen walnut trees). For sealant, we used many coats of marine-grade varnish were used. We still get some ghosting from pouring boiling water over it constantly. Some of that is tea, easily cleaned up, but some of it is slowly affecting the wood beneath. Because of that, I think as many coats as you can get on? The safer you’ll be.

If you’d like, I’ll reach out and see if I can’t get you in direct contact with our friend to see if he can give better advice on his process than I!

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Hackmade said

Hi sudnak and others. What did you end up using? I’m looking for info for two upcoming comissions. And trying to determine best wood and finish.

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I’ve been to the workshops in China where they make the fancy tea tables. The chemical sealants used in China are highly toxic and illegal in the US. It does dry to a non toxic state and is fantastic as a waterproofing step. You have to remember it’s not just water proofing it has to protect against boiling water. That’s the trick. Most finishes available at your local Home Depot won’t help with that.

What you need to do is treat samples of wood with everything you can think of and see what works and what doesn’t when applying boiling water.

LuckyMe said

Good information, I always wondered how they waterproofed tea tables.

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Hackmade said

CLT. I’d like to know what that sealant was.

Messing around with samples was my neXT step. Any recommendations? Mahogany is on my list. Are things like ipe and red balau overthinking it a bit?

I don’t remember it offhand. If I can find out I’ll let you know. I think ipe would be fantastic!

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Hackmade said

Much appreciated.

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