On 23/01/2019 16:29, Rob Morley wrote:
On Wed, 23 Jan 2019 11:29:22 +0000
Tim Lamb wrote:


Internal wall so not likely to suffer hugely from condensation.
U-tube tricks showed wiping shaving cream over the glass as a
prevention! How does that work?

Detergent breaks down surface tension so you get a thin film of water
rather than the haze of many tiny droplets.


I use Ilford Ilfotrol wetting agent to clean mirrors and the
patio door glass. Any misting due to humidity seems to
disappear quite quickly.

A litre only cost about £5 over 10 years ago and it is
highly concentrated, a minute amount goes a long way.