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Discussions => Instrument Design, Construction and Repair => Topic started by: Emi nabius on September 08, 2019, 05:42:35 PM

Title: Bellows paper type
Post by: Emi nabius on September 08, 2019, 05:42:35 PM
Hi, i'm new here and this is my first post, so hi everyone!
I have the project of doing a tuning table and i want to make my own bellows to start learning and practicing the tecnique. I was wondering what type/thickness of paper/clothe is commonly used to recover the cardboard.
I also wanted to know what kind of glue can i use?
Thank you all!
Title: Re: Bellows paper type
Post by: Nick Collis Bird on September 10, 2019, 07:19:57 AM
Hi Emi and welcome to the forum.
This has been covered (pun) before if you search. Anyway here goes. Use a weight similar to gift wrapping paper any pattern ,colour, design you like but here’s the rub! It should be acid free around a Ph of 7. Pens to find this out are available from amazon etc.
  The best glue to use is paste, it gives you time to slide it into place (open time) and doesn’t stain if you get it on the wrong side. Again make sure about the acidity.
Hope this helps
Title: Re: Bellows paper type
Post by: Lester on September 10, 2019, 07:56:48 AM
Hi Emi and welcome to the forum.
This has been covered (pun) before if you search. Anyway here goes. Use a weight similar to gift wrapping paper any pattern ,colour, design you like but here’s the rub! It should be acid free around a Ph of 7. Pens to find this out are available from amazon etc.
  The best glue to use is paste, it gives you time to slide it into place (open time) and doesn’t stain if you get it on the wrong side. Again make sure about the acidity.
Hope this helps
What is the importance of the acidity?
Title: Re: Bellows paper type
Post by: Steve_freereeder on September 10, 2019, 10:51:24 AM
What is the importance of the acidity?
Natural wood pulp paper and card tends to be slightly acidic due to compounds derived from the lignin component in the wood. Over time, especially with exposure to light and heat, these acidic papers deteriorate and break down. This is why acid-free or even slightly alkaline papers/cards were developed for long-term archive and storage use.

If you introduce acid back into the paper or card via an acidic paste or other adhesive, there is a risk of eventual deterioration and breakdown, even with previoulsy acid-free paper.   
Title: Re: Bellows paper type
Post by: Nick Collis Bird on September 10, 2019, 12:24:04 PM
Couldn’t have put that better meself Steve !!!
Title: Re: Bellows paper type
Post by: Emi nabius on September 11, 2019, 08:17:43 PM
thank you all! very helpful, ...i couldn't find the previous entry...
 :|||:  (:)
Title: Re: Bellows paper type
Post by: Peadar on September 11, 2019, 10:18:18 PM
Couldn’t have put that better meself Steve !!!

So Nick- do you use old fashioned flour and water paste?
It has a certain appeal as being low tech & non toxic.
Title: Re: Bellows paper type
Post by: Stockaryd on September 11, 2019, 10:28:50 PM


So Nick- do you use old fashioned flour and water paste?
It has a certain appeal as being low tech & non toxic.
[/quote]

 . . .   You can use hide glue or fish glue.
Used more than 4000 years.  Used by Stradivarius and is still used today.

Title: Re: Bellows paper type
Post by: malcolmbebb on September 11, 2019, 11:08:30 PM
Couldn’t have put that better meself Steve !!!

So Nick- do you use old fashioned flour and water paste?
It has a certain appeal as being low tech & non toxic.
Not sure it's quite flour and water, but pretty sure it's starch based. I used some (from Nick) to cover a small bellows, and it worked fine. I think fish or pearl glue might discolour paper, but Nick's paste didn't and excess could be easily wiped off.
Title: Re: Bellows paper type
Post by: Pete Dunk on September 12, 2019, 07:38:30 AM
In the UK packs of 'LAP' wallpaper paste are still available, this rather old fashioned paste is starch based, not cellulose like most other commonly available wallpaper pastes. It's cheap to buy and easy to use. Buying paper and card from a bookbinder's or artist's supply house is a good idea as these are generally all acid free, (sometimes referred to as 'archival quality').
Title: Re: Bellows paper type
Post by: Nick Collis Bird on September 12, 2019, 07:58:05 AM


So Nick- do you use old fashioned flour and water paste?
It has a certain appeal as being low tech & non toxic.

 . . .   You can use hide glue or fish glue.
Used more than 4000 years.  Used by Stradivarius and is still used today.
[/quote]

You can use ordinary flour and water but you’re going to have to put a mould inhibitor in it such as Thymol. It’s much easier to buy ready made up cold water paste .
    Hide and fish glue are not the same as paste they’re different beasts altogether .
Title: Re: Bellows paper type
Post by: Tone Dumb Greg on September 12, 2019, 08:41:11 AM


So Nick- do you use old fashioned flour and water paste?
It has a certain appeal as being low tech & non toxic.

 . . .   You can use hide glue or fish glue.
Used more than 4000 years.  Used by Stradivarius and is still used today.
Quote
You can use ordinary flour and water but you’re going to have to put a mould inhibitor in it such as Thymol. It’s much easier to buy ready made up cold water paste .
    Hide and fish glue are not the same as paste they’re different beasts altogether .

Is this wallpaper paste?
Title: Re: Bellows paper type
Post by: John MacKenzie (Cugiok) on September 12, 2019, 09:57:49 AM
Fine selection available here (no connections)

http://www.hewitonline.com/Adhesives_s/27.htm

SJ
Title: Re: Bellows paper type
Post by: Nick Collis Bird on September 12, 2019, 12:07:00 PM
Fine selection available here (no connections)

http://www.hewitonline.com/Adhesives_s/27.htm

SJ

That’s it sir John they’re the people we use. B36 exclusively. Another good tip. If you want PVA to keep moist for longer  add  paste about 50/50.
   Greg. Steer away from wallpaper paste its more than likely to be cellulose based. :o
Title: Re: Bellows paper type
Post by: Tone Dumb Greg on September 12, 2019, 11:30:03 PM

... Greg. Steer away from wallpaper paste its more than likely to be cellulose based. :o

Thanks. Glad I asked, I was thinking what a good idea it was :Ph
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