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Old Apr 23, 2007, 02:49 PM
Andrew Mawson
Guest
n/a Posts
Glue for expanded polystyrene ?

What do the 'team' suggest as a good glue for expanded polystyrene
sheet to stick to itself? I am making up some temporary formwork for
an epoxy fibreglass moulding and intend to make the structure from
expanded polystyrene. When it was popular to stick patterned
polystyrene to ceilings there was a special paste for it, but now it's
been banned as a fire risk I cannot find any.

AWEM


Old Apr 23, 2007, 02:58 PM
Tony Jeffree
Guest
n/a Posts
Re: Glue for expanded polystyrene ?

On Mon, 23 Apr 2007 20:49:57 +0100, "Andrew Mawson"
<andrew@no_spam_please_mawson.org.uk> wrote:

>What do the 'team' suggest as a good glue for expanded polystyrene
>sheet to stick to itself? I am making up some temporary formwork for
>an epoxy fibreglass moulding and intend to make the structure from
>expanded polystyrene. When it was popular to stick patterned
>polystyrene to ceilings there was a special paste for it, but now it's
>been banned as a fire risk I cannot find any.


PVA would probably do the job.

Regards,
Tony
Old Apr 23, 2007, 03:04 PM
Archie
Guest
n/a Posts
Re: Glue for expanded polystyrene ?


"Andrew Mawson" <andrew@no_spam_please_mawson.org.uk> wrote in message
news:VomdnVKw5b97kLDbnZ2dnUVZ8tGqnZ2d@bt.com...
> What do the 'team' suggest as a good glue for expanded polystyrene
> sheet to stick to itself? I am making up some temporary formwork for
> an epoxy fibreglass moulding and intend to make the structure from
> expanded polystyrene. When it was popular to stick patterned
> polystyrene to ceilings there was a special paste for it, but now it's
> been banned as a fire risk I cannot find any.
>
> AWEM
>
>


How about Copydex? It is often used to stick veneer to EP for use in model
aircraft wings.

Archie


Old Apr 23, 2007, 03:48 PM
Andrew Mawson
Guest
n/a Posts
Re: Glue for expanded polystyrene ?


"Archie" <archie@nospam.co.uk> wrote in message
news:7j8Xh.57097$aB1.55182@fe3.news.blueyonder.co. uk...
>
> "Andrew Mawson" <andrew@no_spam_please_mawson.org.uk> wrote in

message
> news:VomdnVKw5b97kLDbnZ2dnUVZ8tGqnZ2d@bt.com...
> > What do the 'team' suggest as a good glue for expanded polystyrene
> > sheet to stick to itself? I am making up some temporary formwork

for
> > an epoxy fibreglass moulding and intend to make the structure from
> > expanded polystyrene. When it was popular to stick patterned
> > polystyrene to ceilings there was a special paste for it, but now

it's
> > been banned as a fire risk I cannot find any.
> >
> > AWEM
> >
> >

>
> How about Copydex? It is often used to stick veneer to EP for use in

model
> aircraft wings.
>
> Archie
>
>



.....arg .... major snag ! The resin disolves polystyrene it seems
!!!!! Could use a barrier layer but I suspect it's going to be
plywood<G>

AWEM


Old Apr 23, 2007, 03:55 PM
Suspended Account
willhaney's Avatar
Fountain Valley, California
Joined Feb 2004
10,768 Posts
Polyurethane glue works well. Light, strong and flexible:

Gorilla Glue, Probond, etc.
willhaney is offline Find More Posts by willhaney
Old Apr 23, 2007, 04:24 PM
Dragon
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n/a Posts
Re: Glue for expanded polystyrene ?


> ....arg .... major snag ! The resin disolves polystyrene it seems
> AWEM


I don't think so Andrew.
Polyester resin dissolves polystyrene but epoxy doesn't.
Neither does Copydex.

Henry


Old Apr 23, 2007, 06:27 PM
Archie
Guest
n/a Posts
Re: Glue for expanded polystyrene ?

>
>
> ....arg .... major snag ! The resin disolves polystyrene it seems
> !!!!! Could use a barrier layer but I suspect it's going to be
> plywood<G>
>
> AWEM
>


I seem to remember that Copydex can be thinned with water and no it doesn't
disolve foam. I know a guy who used it to glue the veneer to his foam wings.

Probably the best and easiest stuff to use is something called Gudy. It is a
thin film adhesive which once set, is stronger than the foam and can be hot
wire cut and sanded through the glue line with ease. This can be a problem
with the usual glues. Gudy will be too expensive if there is not much foam
to stick will repay itself in ease of use if there is a lot to do. This
article is old 1988 but the stuff seems to be still available from Neschen.

http://www.pssaonline.co.uk/designer...20Adhesive.htm


Archie





Old Apr 23, 2007, 10:12 PM
shane smith
Guest
n/a Posts
Re: Glue for expanded polystyrene ?

thinned pva will work as a barrier between the and just about anything your
likely to put on it and it's cheap.

"Andrew Mawson" <andrew@no_spam_please_mawson.org.uk> wrote in message
news:VomdnVKw5b97kLDbnZ2dnUVZ8tGqnZ2d@bt.com...
> What do the 'team' suggest as a good glue for expanded polystyrene
> sheet to stick to itself? I am making up some temporary formwork for
> an epoxy fibreglass moulding and intend to make the structure from
> expanded polystyrene. When it was popular to stick patterned
> polystyrene to ceilings there was a special paste for it, but now it's
> been banned as a fire risk I cannot find any.
>
> AWEM
>
>



Old Apr 23, 2007, 11:23 PM
Suspended Account
willhaney's Avatar
Fountain Valley, California
Joined Feb 2004
10,768 Posts
Has anyone else tried the polyurethane?
willhaney is offline Find More Posts by willhaney
Old Apr 23, 2007, 11:36 PM
Stephen Howard
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n/a Posts
Re: Glue for expanded polystyrene ?

On Mon, 23 Apr 2007 20:49:57 +0100, "Andrew Mawson"
<andrew@no_spam_please_mawson.org.uk> wrote:

>What do the 'team' suggest as a good glue for expanded polystyrene
>sheet to stick to itself? I am making up some temporary formwork for
>an epoxy fibreglass moulding and intend to make the structure from
>expanded polystyrene. When it was popular to stick patterned
>polystyrene to ceilings there was a special paste for it, but now it's
>been banned as a fire risk I cannot find any.
>

I've been sticking thin sheets of polystyrene on the shed roof to cure
the condensation - best results I've had have been with using carpet
tile adhesive. It's icky, grippy and sticky - you'll need gloves.

Regards,



--
Stephen Howard - Woodwind repairs & period restorations
http://www.shwoodwind.co.uk
Emails to: showard{who is at}shwoodwind{dot}co{dot}uk
Old Apr 24, 2007, 01:36 AM
Peter Neill
Guest
n/a Posts
Re: Glue for expanded polystyrene ?

On 23 Apr, 20:49, "Andrew Mawson"
<andrew@no_spam_please_mawson.org.uk> wrote:
> What do the 'team' suggest as a good glue for expanded polystyrene
> sheet to stick to itself? I am making up some temporary formwork for
> an epoxy fibreglass moulding and intend to make the structure from
> expanded polystyrene. When it was popular to stick patterned
> polystyrene to ceilings there was a special paste for it, but now it's
> been banned as a fire risk I cannot find any.
>
> AWEM


Pop down to the local graphics supplies shop and get a can of 3M spray
mount, that should do the trick.

Peter

Old Apr 24, 2007, 01:43 AM
Chris Edwards
Guest
n/a Posts
Re: Glue for expanded polystyrene ?

On Mon, 23 Apr 2007 23:27:17 GMT, "Archie" <archie@nospam.co.uk> wrote:

>
>> ....arg .... major snag ! The resin disolves polystyrene it seems
>> !!!!! Could use a barrier layer but I suspect it's going to be
>> plywood<G>
>>
>> AWEM
>>

>
>I seem to remember that Copydex can be thinned with water and no it doesn't
>disolve foam. I know a guy who used it to glue the veneer to his foam wings.
>
>


.......is that that Icarus fella?
--

Chris Edwards (in deepest Dorset) "....there *must* be an easier way!"
Old Apr 24, 2007, 04:06 AM
Archie
Guest
n/a Posts
Re: Glue for expanded polystyrene ?

>
> ......is that that Icarus fella?
> --
>
> Chris Edwards (in deepest Dorset) "....there *must* be an easier
> way!"


No, he had feathers. Don't fancy sticking all these feathers on with Copydex
:-)

Archie


Old Apr 24, 2007, 06:44 AM
Peter Fairbrother
Guest
n/a Posts
Re: Glue for expanded polystyrene ?

Andrew Mawson wrote:

> What do the 'team' suggest as a good glue for expanded polystyrene
> sheet to stick to itself? I am making up some temporary formwork for
> an epoxy fibreglass moulding and intend to make the structure from
> expanded polystyrene. When it was popular to stick patterned
> polystyrene to ceilings there was a special paste for it, but now it's
> been banned as a fire risk I cannot find any.


PVA/acrylic, epoxy, some polyurethanes (eg gorilla glue, PU foams), some
spray adhesives (eg 3M type 77 or 78 and others). Or search ebay for
[polystyrene glue] if you only want a little.



Glues are now subject to some EU regulation or other which means that the
volatile organic solvents are being either minimised or done away with
altogether. It's (some of) these solvents which damage PS when it is glued.

I'm not up-to-date on this, but many glues have changed in the last few
years, so basically try anything you have handy on a piece of scrap, it
might work and save the cost and effort of buying something especially for
the job.

I use Wilko floor varnish ...


--
Peter Fairbrother

Old Apr 24, 2007, 06:58 AM
Tim Auton
Guest
n/a Posts
Re: Glue for expanded polystyrene ?

Peter Fairbrother <zenadsl6186@zen.co.uk> wrote:
> Andrew Mawson wrote:
>
>> What do the 'team' suggest as a good glue for expanded polystyrene
>> sheet to stick to itself? I am making up some temporary formwork for
>> an epoxy fibreglass moulding and intend to make the structure from
>> expanded polystyrene. When it was popular to stick patterned
>> polystyrene to ceilings there was a special paste for it, but now it's
>> been banned as a fire risk I cannot find any.

>
> PVA/acrylic, epoxy, some polyurethanes (eg gorilla glue, PU foams), some
> spray adhesives (eg 3M type 77 or 78 and others). Or search ebay for
> [polystyrene glue] if you only want a little.


If polystyrene glue is the same as polystyrene cement, that's exactly
what you *don't* want. It's designed to work on solid polystrene
(plastic models) and works by dissolving the plastic. It just 'melts'
straight through expanded polystyrene.


Tim
 


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