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Epoxy does not dry, it cures - it undergoes a chemical reaction. David =
Love likely got it right - epoxy can be very sensitive to having the =
exact proportion of resin and hardener correct. When mixing medium and =
large quantities of epoxy, volumetric measurement methods are usually =
sufficient. But with smaller quantities it is best (pretty much =
required) to weigh the proportions on an adequate scale to get the =
proper mix.
Bernard is correct that epoxy can require several days to cure =
completely, but most epoxies cure to about 98% of their final hardness =
in less than a day.
Whereas one day should be sufficient time for most epoxies to cure =
adequately in the application you describe, when I have epoxy-repaired =
bridges, I have let the epoxy cure for at least two days - preferably =
longer.=20
I am not familiar with the properties and cure times for Araldite 2013. =
That info should be available from the manufacturer.
West System products are available in Europe (even Old Europe!)
I forget which country you are in, but here are a couple sources:
France:
Boero Colori France
BP 242 Rue Newton
17012 LA ROCHELLE CEDEX 01
Tel: +33 546281010
Fax: +33 546281015
Germany:
M.u.H. von der Linden
PO Box 100543
D46465 WESEL
Tel: +49 281 33830-0
Fax: +49 281 26503
email: service@vonderlinden.de
The NETHERLANDS
Epifanes / W. Heeren & Zoon BV
1430 AD Aalsmeer
Tel: +31 297 360366
Fax: +31 297 342078
NORWAY
WEST SYSTEM Norge A/S
Gjerdrums vei 12
0486 OSLO
Tel: +47 22233500
Fax: +47 22180604
SWEDEN
Armatech
Box 158
Finntorpsvagen 7
131 08 NACKA
Tel: +46 8 7169199
Fax: +46 8 7169159
UNITED KINGDOM
Marinac Yacht Fittings, Ltd
24-26 Boswell Square
Hillington Indust'l Estate
Glasgow G52 4BQ
Tel: 01418-838723
Fax: 01418-834638 Marine & Indust'l Sealants
Keepers Cove, Westwick Hill
North Walsham, Norfolk
Tel: 01692-538263
Fax: 01692-538692=20
Robbins Timber
Units 12-18 Brookgate
Ashton Vale Trading Estate
Bristol BS3 2UN
Tel: 0117 963 3136
Fax: 0117 963 7927 Simpson-Lawrence Ltd
218/228 Edmiston Dr
Glasgow G51 2YT
Tel: 01414-300 9100
Fax: 01414-275419=20
Simpson-Lawrence Ltd
Unit G, Fort Wallington
Fareham, Hampshire PO15 8TT
Tel: 01329-823300
Fax: 01329-823282 Sowester
Stingsford Rd, Nuffield Industrial Estate
Poole, Dorset BH17 OSW
Tel: 01202 667700
Fax: 01202 668585=20
Wessex Resins & Adhesives Ltd.
Cupernham House, Cupernham Lane
Romsey, Hampshire SO51 7LF
Tel: +44 (0)1794-521111
Fax: +44 (0)1794-517779
Email: information@wessex-resins.com=20
Other countries are listed on the www.westsystem.com web site.
Terry Farrell
----- Original Message -----=20
From: "Bernhard Stopper" <b98tu@t-online.de>
To: "Pianotech" <pianotech@ptg.org>
Sent: Friday, September 17, 2004 2:22 AM
Subject: Re: Epoxy glue in Europe ?
> Hello Stephane,
> the time for drying was probably too short. Depending on the hardener =
it
> takes at least 2-5 days. If not dried out completely, the epoxy can =
flow
> under stress.
>=20
> regards,
>=20
> Bernhard
>=20
> ----- Original Message -----=20
> From: "St=E9phane Collin" <collin.s@skynet.be>
> To: "Pianotech" <pianotech@ptg.org>
> Sent: Friday, September 17, 2004 4:12 AM
> Subject: Epoxy glue in Europe ?
>=20
>=20
> > Hello all.
> >
> > After reading posts about happy use of epoxy glue to repair loose =
bridge
> > pins, I have tried this on a piano which had quite large cracks (2 =
mm) at
> > the pin holes on the bass bridge (the pins were vertical).
> >
> > It was a disaster.
> >
> > I mixed the two components, heated the pins, let the glue go down =
into the
> > crack, let rest for a whole day, then put the string back in place, =
and
> was
> > happy for about 6 hours, after what, unhappy to see that the pins =
were
> back
> > again in their vertical position.
> > Makes me think we don't talk about the same epoxy glue.
> > I used Araldite 2013 (medium fast hardening gap filling for wood and
> metal),
> > as West System epoxy is hard to find here.
> > Any idea about what went wrong ?
> > Any clue about a product easy to find on the old continent ?
> >
> > Thanks in advance.
> >
> > St=E9phane Collin.
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