On 15/01/2019 12:03, Andrew Gabriel wrote:
In article ,
The Natural Philosopher writes:
surgical spirit is ethanol adulterated with methanol but without the
purple dye.

Although it has other alduterants to make it a bit more 'medical'

In the UK, surgical spirit also contains oil, and a topical anaesthetic
(usually asprin as methyl salicylate).
The formulation in different countries varies widely though.

Isopropyl is always the best bet for degreasing.

Boots lens cleaner for example

Really? I have several other lens cleaners here, but they all emphasise
alcohol free, although they smell of some organic solvent.


Mmm. I just looked at my wiopes and they have 'denatured alcohol' and
water in them..

So meths without the dye, again...



Reminds me, my father went to clean his specs a few weeks ago, but
they were just getting more and more smeary. I looked at the lens
cleaner (which he could no longer read by this stage), and he'd
picked up a bottle a spray-on latex by mistake.
That did take some effort to get off...



--
Socialism is the philosophy of failure, the creed of ignorance and the
gospel of envy.

Its inherent virtue is the equal sharing of misery.

Winston Churchill