See model airplane sites - Re: Cyanoacrylate and baking soda (was Re: Multimeter recomendations)

[fjgjr1 at aol.com]

Check model airplane sites on Google - I recall this is an " old technique " they used a lot.- check also the particular glues they recommend  - there were a lot of them 10 - 20 years ago - many new ones now I believe - need to be careful obviously - do not want to glue body parts together !!!

I use to do model airplanes until I got into vintage computers !

Frank




-----Original Message-----
From: John Foust <jfoust at threedee.com>
To: cctalk at classiccmp.org
Sent: Wed, Oct 13, 2010 9:55 am
Subject: Cyanoacrylate and baking soda (was Re: Multimeter recomendations)


At 10:54 PM 9/21/2010, Fred Cisin wrote:
> >up with joining plastic parts with cyano-acrylate (super-glue) and then
> >running a soldering iron along the joint.
On Tue, 21 Sep 2010, John Foust wrote:
> What does that do?  Heat helps it?
Welding the joint at the surface.
Even that shallow weld substantially reduces the stress on the joint.
Obviously only suitable for SOME types of plastics.
While googling for rubber restorer alternatives to improve the pickup
ollers on old Laserjets (in particular the use of Marvel Mystery Oil)
 stumbled on discussions of mixing baking soda with super-glues.
It acts as a hardening accelerant (leading to exothermy) and as a filler
f small gaps.  It sounds like it hardens almost instantly, ready for
anding and paint.
- John