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19th Aug 2021, 4:02 pm | #1 |
Hexode
Join Date: Apr 2008
Location: Perigord Noir, France
Posts: 352
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Speaker cloth replacement
Hi,
I have recently got a 1935 Marconi 435 Radio. The speaker cloth/material is beyond cleaning and I have ordered (thanks to my wife - fabrics are her domain!). I guess the old cloth was glued to the speaker mounting board with maybe hide glue - so that it can be removed in the future. So, my question is what suggestions for a suitable modern glue to use? Obviously PVA is easy to use, but not easily removed in the future if needed. So I await some help. Thanks. Andy. |
19th Aug 2021, 10:53 pm | #2 |
Triode
Join Date: Oct 2008
Location: Perth, Western Australia, Australia
Posts: 39
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Re: Speaker cloth replacement
I've had good results with "craft" glue and PVA.
Maybe use a few drawing pins etc to keep cloth under tension as glue dries.
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Best Regards Nigel VK6CPU Perth, Western Australia |
20th Aug 2021, 7:55 am | #3 |
Octode
Join Date: Sep 2004
Location: St. Albans, Hertfordshire, UK.
Posts: 1,477
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Re: Speaker cloth replacement
Why would you need to remove it in the future? If it gets torn/damaged/faded you would want to replace it anyway!
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Regards, Richard, BVWS member |
20th Aug 2021, 10:36 am | #4 |
Hexode
Join Date: Apr 2008
Location: Perigord Noir, France
Posts: 352
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Re: Speaker cloth replacement
Red -Duck, Thanks for your input. I think that is what I will do. The new fabric has just arrived.
Dickie, If the fabric has (for whatever reason) to be replaced in the future then removing the old fabric would be easier if it was stuck on with a water soluble adhesive. Like antique furniture is usually repaired with hide glue for a similar reason. |
20th Aug 2021, 12:40 pm | #5 |
Octode
Join Date: Sep 2004
Location: St. Albans, Hertfordshire, UK.
Posts: 1,477
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Re: Speaker cloth replacement
Hi Andy,
I take your point, but it takes quite a lot of soaking to loosen water-based adhesives. I would guess the baffle board is likely to be plywood and I wouldn't want to get water anywhere near it for fear of it delaminating. I would choose to use a mechanical method of removal!
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Regards, Richard, BVWS member |
20th Aug 2021, 4:32 pm | #6 |
Guest
Posts: n/a
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Re: Speaker cloth replacement
As you have access to a fabric person try some iron on stiffening.
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20th Aug 2021, 6:44 pm | #7 |
Dekatron
Join Date: Sep 2011
Location: Rugeley, Staffordshire, UK.
Posts: 8,809
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Re: Speaker cloth replacement
Why worry about the future in that respect? Even if you have to get rough with it, speaker cloth is relatively easy to remove. Sand the mounting board down afterwards if needed. I'd use a general purpose craft/PVA glue sparingly.
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A digital radio is the latest thing, but a vintage wireless is forever.. |
21st Aug 2021, 6:40 pm | #8 |
Rest in Peace
Join Date: Jan 2015
Location: Cottesmore, East Midlands, UK.
Posts: 858
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Re: Speaker cloth replacement
Hi, Andy,
I've had good results using embroidery stretchers on the past for applying speaker cloth. Buy an embroidery ring just a little larger than the speaker hole (like this). Use it to stretch the cloth evenly without being too tight. With the radio/amplifier or whatever face down on the bench apply a band of glue all round the inside face of the hole, then place the embroidery ring on top of it - this way it's very easy to orient any pattern in the fabric correctly. Place a few books on top and let it dry. Then it's just a simple matter of running a craft knife around the inside rim of the hoop and lifting away the hoop and its attached offcut. No trying to hammer tacks in a limited space, the fabric doesn't warp as you try to stretch it manually and the weave of the fabric will be correctly orientated. Cheers, Frank |
24th Aug 2021, 1:11 pm | #9 |
Pentode
Join Date: Jul 2020
Location: Borehamwood, Hertfordshire, UK.
Posts: 216
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Re: Speaker cloth replacement
Can you advise me ware to obtain speaker cloth or grill at a reasonable price as i find it can be very expensive on most sites ?
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24th Aug 2021, 1:46 pm | #10 | |
Guest
Posts: n/a
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Re: Speaker cloth replacement
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