Reviving and connecting an ASR33

From: Geoffrey Thomas <geoffreythomas_at_onetel.net.uk>
Date: Mon Sep 22 14:57:25 2003

I find Loctite 406 superglue - for plastics and rubber - good for most
plastics - sometimes you can get a damn near invisible mend with it. My
local plastic upvc window centre sells it at about ?4 for a 20g bottle. Do
you have this glue in the states ?

Geoff.

----- Original Message -----
From: "Tothwolf" <tothwolf_at_concentric.net>
To: <cctalk_at_classiccmp.org>
Sent: Monday, September 22, 2003 9:14 AM
Subject: Re: Reviving and connecting an ASR33


> On Sun, 21 Sep 2003, Ian Primus wrote:
>
> > Some of the keys are cracked. A couple of the keytops have cracked out
> > from the lettering, most notably the "Break" key, which gets stuck down
> > because it is now slightly wider.
>
> > The paper advance knob is cracked. I think I can glue it, but otherwise
> > I will need to track down another.
> >
> > The cover is cracked, but that isn't really a big deal. I should be able
> > to glue it back together. What type of glue is recommended for teletype
> > plastic? Just regular wacky glue, or some sort of epoxy?
>
> It all depends on what kind of plastics need to be bonded.
>
> For ABS plastics, a Methylene Chloride based solvent works very very well.
> (It does not work very well for ABS+PC blends, however. I seriously doubt
> you have any ABS+PC in the ARS33 though, since it is a pretty modern
> plastic.) Plastic model cement is pretty much useless these days, as they
> have removed nearly all of the solvent type chemicals from the product.
> Superglue/wacky glue/etc tend to be a very bad idea for most plastics, as
> they don't bond to it well and cause major cosmetic damage.
>
> If the keys/knob are bakelite, you might want to talk to folks who repair
> old radios, as cracked knobs are a common problem. I've not had to repair
> bakelite yet, so I can't recommend a specific method. I do know that you
> can't bond bakelite with a solvent as you would more modern plastics. Some
> type of epoxy might be the best method for bakelite.
>
> -Toth
Received on Mon Sep 22 2003 - 14:57:25 BST