I needed just a little silicone a few weeks ago and used some black Dow
Corning 791 neutral cure I had left over from a job a year or so ago and
which was still flowing. Problem is that it's not going off. I can't
blame the makers as it was well past its use by date.

Is there anything I can do to encourage it to set?

(I'm hoping to avoid having to clean it off and start again as it was to
seal new meter tails in a gland in the top of a CU.)

--
Robin
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Wait.


Excellent, thanks - a solution matched to my abilities
--
Robin
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On Sunday, 18 January 2015 07:36:45 UTC, Robin wrote:

Wait.

Excellent, thanks - a solution matched to my abilities

Is it doing its job anyway right now?

Is it doing its job anyway right now?

Yes/No/Maybe

Yes it's keeping dust/crud from falling into the CU.
No 'cos if the tails are bashed I suppose the silicone might move and
leave a gap.
Maybe it'd meet the IP 4X test: I can't judge as (a) I'm not going to
stick a wire into it and (b) it's sticky stuff and I don't know how long
BS 60529 requires the enclosure to resist the 1mm probe. Not that I'm
suggesting a CU Made out of pitch

(It was a CU in typical cupboard under stairs with meter tails like
shoestrings entering at the top through a 25mm knockout. I just
replaced the tails - easy with a nice new cutout with the new meter -
and the 4mm "main bonding" which only went to the long-disconnected lead
water pipe.)
--
Robin
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