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aus+uk / uk.d-i-y / Will PVA cure without clamping and with restricted access to atmosphere

SubjectAuthor
* Will PVA cure without clamping and with restricted access to atmosphereChris Holmes
+- Re: Will PVA cure without clamping and with restricted access to atmosphereTricky Dicky
`* Re: Will PVA cure without clamping and with restricted access to atmosphereJohn Rumm
 `- Re: Will PVA cure without clamping and with restricted access to atmosphereChris Holmes

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Will PVA cure without clamping and with restricted access to atmosphere

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From: chrispvholmes@gmail.com (Chris Holmes)
Newsgroups: uk.d-i-y
Subject: Will PVA cure without clamping and with restricted access to
atmosphere
Date: Thu, 14 Mar 2024 17:14:02 -0000 (UTC)
Organization: A noiseless patient Spider
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 by: Chris Holmes - Thu, 14 Mar 2024 17:14 UTC

Question as above.

I am cluing a couple of pieces of board (edge to edge (don’t need a
massively strong bond).

Was being a bot cheap, so used PVA rather than epoxy…

Only thought after that I could have stretched some tape across the join on
both sides for a clamping action. As it is, the gap is covered with
sellotape on both sides just to stop leakage & seepage.

Will it cure?

Cure slowly?

Or mot cure at all?

Re: Will PVA cure without clamping and with restricted access to atmosphere

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From: tricky.dicky@sky.com (Tricky Dicky)
Newsgroups: uk.d-i-y
Subject: Re: Will PVA cure without clamping and with restricted
access to atmosphere
Date: Thu, 14 Mar 2024 19:25:19 -0000 (UTC)
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 by: Tricky Dicky - Thu, 14 Mar 2024 19:25 UTC

Chris Holmes <chrispvholmes@gmail.com> wrote:
>
> Question as above.
>
> I am cluing a couple of pieces of board (edge to edge (don’t need a
> massively strong bond).
>
> Was being a bot cheap, so used PVA rather than epoxy…
>
> Only thought after that I could have stretched some tape across the join on
> both sides for a clamping action. As it is, the gap is covered with
> sellotape on both sides just to stop leakage & seepage.
>
> Will it cure?
>
> Cure slowly?
>
> Or mot cure at all?
>
>

A rubbed joint is a common method of joining boards with PVA. Applying glue
to both surfaces and rubbing the two surfaces uses atmospheric pressure to
hold the joint together. The joint will cure just like any other method
using PVA. It will however be weaker than a clamped joint as clamping tends
to make the PVA penetrate into the surfaces joined.

Re: Will PVA cure without clamping and with restricted access to atmosphere

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From: see.my.signature@nowhere.null (John Rumm)
Newsgroups: uk.d-i-y
Subject: Re: Will PVA cure without clamping and with restricted access to
atmosphere
Date: Thu, 14 Mar 2024 22:27:55 +0000
Organization: Internode Ltd
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 by: John Rumm - Thu, 14 Mar 2024 22:27 UTC

On 14/03/2024 17:14, Chris Holmes wrote:
>
> Question as above.
>
> I am cluing a couple of pieces of board (edge to edge (don’t need a
> massively strong bond).
>
> Was being a bot cheap, so used PVA rather than epoxy…
>
> Only thought after that I could have stretched some tape across the join on
> both sides for a clamping action. As it is, the gap is covered with
> sellotape on both sides just to stop leakage & seepage.
>
> Will it cure?

Yes

> Cure slowly?

Might be slightly slower but not much.

The joint will probably be somewhat brittle and weaker than a clamped
one though. PVA has no real gap filling strength.

--
Cheers,

John.

/=================================================================\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\=================================================================/

Re: Will PVA cure without clamping and with restricted access to atmosphere

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From: chrispvholmes@gmail.com (Chris Holmes)
Newsgroups: uk.d-i-y
Subject: Re: Will PVA cure without clamping and with restricted
access to atmosphere
Date: Sat, 16 Mar 2024 08:23:57 -0000 (UTC)
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 by: Chris Holmes - Sat, 16 Mar 2024 08:23 UTC

<Snip>

It worked!

Don’t know yet if it will be strong enough, but it seems good.

(This project has given me a new maxim….

Measure 3 times, cut 4 times….

Glue a bit back on

::-;))

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