|
Posted by pogo on August 23, 2006, 8:20 pm
Please log in for more thread options > pogo wrote:
> >
> > I have found on some PCB device that wire leads attached directly to the
board eventually break at the point of
> > soldering. Has anyone had any drawbacks to putting a dab of silicone sealant
right there to give a little strain
relief
> > ? Better ideas ? Seems like a no-brainer but I thought I'd ask ...
> >
> > I'm talking about such things as a MiniSSC-II, etc.
>
> Since silicone sealant requires a setting and curing time (and contain
> acetic acid, formaldehyde, and other icky stuff) why not get one of
> those cheap $1 glue guns and some glue sticks. These heat up in a
> minute, and the glue sets in 30 seconds. The "glue" is not really glue,
> but a thermoplastic. But test first to make sure the glue has no
> electrical conductivity. Most don't, but obviously the stuff with
> glitter mixed in is not for PCBs!
>
> Obviously you don't want to use this near components that will get
> really warm, like a power transistor.
>
> You may also find it helpful that if there is more than one wire from
> the PCB to bunch them all together, and tie them with a tie-wrap. That
> way all the wires act as their own strain relief. Sort of share the
> strain thing. And as Andrew notes, if there's a free hole in the PCB, or
> you can drill one without wrecking it, that's a good choice, too.
>
Thanks - good tips! I have a small glue gun so that sounds like a better idea
than silicon sealant - which seems to dry
up on me the same day I open it.
Thanks again !
JCD
| 
XML site map