PSN-L Email List Message

Subject: Re: A Sticky Question
From: meredith lamb paleoartifact@.........
Date: Wed, 21 Jul 2010 14:18:41 -0600


Jerry,

Yes, glue is a real problem over a variety of materials that need to be
glued.

As far as commercially available brands (USA), there is one plastic glue
I've come to favor; and that is
Devcon brand, Plastic Welder.  Its a two part mixing glue that is meant for
a variety of materials
like hard plastic, vinyl, pvc piping, fiberglass (and metals and concrete).
Net volume 25ml.  Available
in Ace Hardware stores and likely a variety of other sources; for roughly
$6.  Its a plunger outlet nozzle.
A little can go a long ways with your use.  One problem with re-use is
clearing out the plunger tips
with a nail (etc.) to allow free flow.  It's flammable, stinky stuff, and
best to ventilate or use outdoors.
It makes no mention of being waterproof; but I've used such in a
magnet/metal holding fixture in a
bathroom for ~ 3 years; and has seen no failure yet.  This does not bond to
polyethylene or polypropylene
plastics.

I've used it on cloth to metal, metal to rubber and once even (clean) carbon
plate to carbon plate with amazing
(no failure yet, over ~ 2 years).  Some of these parts come into physical
force contact and separation;
but thus far its has been holding well.

Once mixed it begins to harden very fast.  Although tricky to do, removing
unwanted excess might call
for another person (or holder) to hold the glued object, and wiping the
unwanted excess off with a damp cloth.
I usually let it dry for a full day; but it could be shorter duration.

How well, long term it actually holds is probably dependent somewhat on
having clean surfaces to begin
with.  The actual holding force is unknown...I'am not sure at all as to the
forces exposed to with coil
winding forms.  One might conceivably try out bonding scrap pieces, letting
dry, and physically trying
to separate, bend, torque them; before application into your final project.

Another glue is the same brand; Devcon 2 part "5 minute epoxy", but its
relegated only to metal & wood,
concrete, glass & china and ceramics.  Probably good for ~ frame parts
holding.

Take care, Meredith

On Mon, Jul 19, 2010 at 7:42 AM, GPayton  wrote:

>  In years past, I had difficulties in finding a "manual" coil winder and
> ended up with an old fashioned had drill.  (As you know, you have to search
> using the correct words or your mouth pursed just right to be successful.)
>
> Anyway, that hand drill is what I ended up with.  The EBay choices shown by
> Barry are interesting.  Thanks, Barry.
>
> Never-the-less, in past, I had more trouble finding proper shaped
> ready-made spools or bobbins to wind a coil.  And, if I tried to construct a
> rectangular shaped form, I had trouble getting the sandwiched parts to stick
> together!  I suppose that I did not have the correct adhesive.  I tried
> several without satisfaction.
>
> If anyone knows the secret to building a rectangular form, materials &
> glue, I'd appreciate knowing it.
>
> Regards,
> Jerry
>
>
>
Jerry,

Yes, glue is a real problem over a variety of materials that = need to be glued.

As far as commercially available brands (USA), the= re is one plastic glue I've come to favor; and that is
Devcon brand,= Plastic Welder.=A0 Its a two part mixing glue that is meant for a variety = of materials
like hard plastic, vinyl, pvc piping, fiberglass (and metals and concrete).= =A0 Net volume 25ml.=A0 Available
in Ace Hardware stores and likely a va= riety of other sources; for roughly $6.=A0 Its a plunger outlet nozzle.
= A little can go a long ways with your use.=A0 One problem with re-use is cl= earing out the plunger tips
with a nail (etc.) to allow free flow.=A0 It's flammable, stinky stuff,= and best to ventilate or use outdoors.
It makes no mention of being wat= erproof; but I've used such in a magnet/metal holding fixture in a
bathroom for ~ 3 years; and has seen no failure yet.=A0 This does not bond = to polyethylene or polypropylene
plastics.

I've used it on cl= oth to metal, metal to rubber and once even (clean) carbon plate to carbon = plate with amazing
(no failure yet, over ~ 2 years).=A0 Some of these parts come into physical= force contact and separation;
but thus far its has been holding well.
Once mixed it begins to harden very fast.=A0 Although tricky to do, r= emoving unwanted excess might call
for another person (or holder) to hold the glued object, and wiping the unw= anted excess off with a damp cloth.
I usually let it dry for a full day;= but it could be shorter duration.

How well, long term it actually h= olds is probably dependent somewhat on having clean surfaces to begin
with.=A0 The actual holding force is unknown...I'am not sure at all as = to the forces exposed to with coil
winding forms.=A0 One might conceivab= ly try out bonding scrap pieces, letting dry, and physically trying
to s= eparate, bend, torque them; before application into your final project.

Another glue is the same brand; Devcon 2 part "5 minute epoxy"= ;, but its relegated only to metal & wood,
concrete, glass & chi= na and ceramics.=A0 Probably good for ~ frame parts holding.

Take c= are, Meredith

On Mon, Jul 19, 2010 at 7:42 AM, GPayton <gpayton@uspayto= ns.com> wrote:
In=A0years past, I had difficulties in finding a "manual" co= il winder=20 and ended up with an old fashioned had drill.=A0 (As you know, you have to= =20 search using the correct words or your mouth pursed just right=A0to be=20 successful.)
=A0
Anyway, that hand drill is what I ended up with.=A0 The EBay choices= =20 shown by Barry are interesting.=A0 Thanks, Barry.
=A0
Never-the-less, in past, I had more trouble finding proper shaped=20 ready-made spools or bobbins to wind a coil.=A0 And, if I tried to construc= t=20 a rectangular shaped form, I had trouble getting the sandwiched parts to st= ick=20 together!=A0 I suppose that I did not have the correct adhesive.=A0 I=20 tried several without satisfaction.
=A0
If anyone knows the secret to building a rectangular form, materials &= amp;=20 glue, I'd appreciate knowing it.
=A0
Regards,
Jerry
=A0
=A0


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