Hayaku

[osgood]

I just got some Hayaku hinging tape to try out.
Just wondering about the adhesive on it. Is it gum?

Does anyone, especially Hugh and/or Rebecca have some opinions to share on this tape, please?

 

[ERIC]

( Tape! I wondered why you were putting a poem here instead of in Warped )

 

[osgood]

No not a poem Eric. If I was a poet, I would indeed post my poetry on warped.
Just would like some helpful and professional opinions and advice on this product.

 

[BILL WARD]

i've used it for 2-3 years now.....only thingI'd recommend---get it wet enough& let it sit for 10-15 secs while all the adhesive is activatedand make some small glass weights to put on top of the join while it grabs (neither one is "necessary' but I think that makes for stronger bonds & THAT'S the idea). Maynot be the best answer to the situation but it is certainly one of the most convenient, yes?

 

[Cliff Wilson]

What I've been told by ... the conservator I use locally, Jim Miller in his class, the conservator at the Worcester Art Museum ... not sure who told me what though and we're relying on my memory.

Hayaku uses a synthetic adhesive. Vynal I think I was told? It has been known to trun brownish in color although no one I talked to actually saw that. It appears to be water reversable and seems to be removable from the paper.

Recommendations I have recieved are to NOT use it for anything you would normally use starch on. But, it's a nice substitute for any pressure sensitive tape.

Personnaly, I think the advent of the Nori packets significantly reduces the utility of the Hayaku tape.

Ohh, for those uninformed, Hayaku is actually a roll of 1" japanese paper with a water activated adhesive on one side.

 

[Jim Miller]

Yes, Cliff. According to two conservators I consulted in developing the class on framing adhesives, the adhesive in Hayaku hinging tape is soluble nylon, which becomes irreversible with water over time.

Hayaku is much better than most hinging alternatives, such as pressure-sensitive adhesive tapes, but it is not suitable for projects requiring the best preservation.

For preservation hinging, there's nothing as good as pure starch paste without additives. That is available two ways:

1. cook it fresh, as needed, or
2. open a packet of Nori Paste.

 

[osgood]

Thanks for the comments.
I suspected that was the case.

For pres hinging I've been using a pre cooked (powder) adhesive that just needs water added to it.

I have used Nori as well and is very convenient. Seems to be a bit more expensive than it should be. Probably due to import duties and excessive freight charges.

 

[Jim Miller]

Originally posted by osgood:
...I have used Nori as well and is very convenient. Seems to be a bit more expensive than it should be. Probably due to import duties and excessive freight charges.

Import duties? Greg is a smart, successful businessman. If Nori is made overseas, it is because the cost is less, not more. What would be the point of foreign manufacture if it added cost?

In any case, the value of Nori can not be properly measured in the dollars and cents of its cost. Consider what it saves.

Cooking a batch of paste takes about fifteen minutes including the time to get out all the materials, container, mix, cook, contain, cool, strain, and put away the mess. Twice a week, that amounts to much more than the cost of using prepared paste. If your shop labor rate is $60 per hour -- $1 per minute -- like mine is, it's a slam-dunk. At about $1 per packet, Nori doesn't cost, it pays.

 

[Cliff Wilson]

Jim, Osgood is an aussie.

 

[Maryann]

Cooking a batch of paste takes about fifteen minutes

Not in our shop.
Starch paste stored next to the sink. Take a pinch of starch, put in a shot glass, add a few drops of water, microwave five seconds. Let cool a few minutes while you do something else. Gives enough to do 4-5 projects. Clean up less than a minute.

 

[Greg Fremstad]

Nori ready to use wheat starch packets are made right here in the good ol USA near Hood River Oregon.
Nori is the Japanese word for paste. It is also the Japanese word for that dark seaweed wrapper on sushi. (Yum). It also has lots of other meanings - Japanese is just as strange a language as English I think. Try it, you'll like it! Nori - not sushi.

 

[Cliff Wilson]

Ormond, what does the Nori cost you in Australia?

 

[Jim Miller]

Originally posted by Cliff Wilson:
Jim, Osgood is an aussie.

Aw, Geez...Duh. I knew that. What was I thinking??

Ormond, the paste keeps for a long time in the packets. They are small and fairly lightweight. Would it be practical for you to buy 100 packets or so from a US supplier, have them mailed directly to you, and then share with others down there?

 

[osgood]

Thanks Cliff for pointing out my location.

Nori down here is nearly three times what you pay up there. (most framing supplies that come from USA cost a lot more down here)
Not such a big deal, but I understood that if the package was opened it had to be chucked out if not used. More to do with wastage if there is only one job to use it on at the time, I guess!

I have bought things from USA and had them posted down here before. In some cases it is cost effective and in other cases due to the exchange rate, freight or postage and our tax system it's probably not worth the trouble.

It might be worth the trouble to get 100 packets sent down. I will look into that!
Thanks again!

 

[Jim Miller]

Make me an offer I can't refuse, Ormond. I'll bring you a suitcase full of Nori, we can spill a couple of your fine aussie beers together, and you can tell me all about your new underpinner.

 

[RoboFramer]

100 sachets of Nori here costs £76.20 (about $132) pre-tax.

How does that compare?

Just curious

 

[Cliff Wilson]

Robo, last time I checked United was selling a dozen packets for about $11.85. I've seen them for a little more, so Jim's estimate of $1/packet is pretty spot on.

 

[RoboFramer]

Thanks Cliff,

Missed Jim's estimate, so - not bad at all.

 

[Pat Kotnour]

As a framer who doesn't have much time to cook anything these days, including food, Nori packets at $1 a packet are a real buy. Any waiting time to cool, or even the smallest mess to clean up is still time that I don't have. My theory is to never spend $10 worth of time to save a $1 in materials. During the time it takes to cook paste and clean up the mess you can have the have the hinge done and can be working on some other part of the framing process while you are waiting for the Nori to dry. In my book that 10 minutes is priceless.