[sdiy] Bathtub Caulk - Liquid Duct Tape

[harry]

Y'know... there is a grade of RTV that has NO acetic acid. It is white
in color. VERY good for electronics. I don't know if it is available at the
hardware store...

This stuff can be frozen to increase shelf life...

Only problems  with RTV is if you are not a BIG user... the tube will
harden before you use 10% of it  :^(

H^) harry

Grant Richter wrote:

> Here is a tip I have not heard mentioned, but have seen used at every
> electronics shop I have worked at.
>
> Bathtub Caulk or Silicone RTV (room temperature vulcanizing) rubber
>
> I mostly use the "clear" stuff but it comes in white, silver and black.
>
> This stuff is usable for stabilizing nearly anything in the electronics
> world. Gluing mod wires to PCBs is on example. Or tacking an LED to a Radio
> Shack photocell to make a home made Vactrol. It is a pretty good insulator,
> is removable and is real handy to lock nuts if there is not room for a lock
> washer. We used to put a dab on each end of a socketed EPROM to keep them
> from popping out during shipping. Makes gaskets, seals goof holes, keeps
> pots from rotating (don't get it inside the pots), and if you are really
> desperate, it can take the place of PCB standoffs (NOT recommended).
>
> One note of caution - the stuff releases acetic acid (vinegar) as it cures,
> this is enough to dissolve the plated copper inside a PCB via, so don't get
> it into vias on the PCB. Tack onto a blank spot on the PCB. Also keep the
> enclosure open over night to vent the fumes.