Re: Good Mask De-fogger?

On Mon, 23 Jun 2008 15:13:03 +0100 in uk.rec.scuba, Cliff Coggin says:


"Ian Blakeley" <boots@xxxxxxxxxxxxx> wrote in message
news:d3d01ede-036e-4967-8957-f9f2ad3a3adb@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
On Jun 20, 11:17 pm, "NHdiver" <nhdi...@xxxxxxxxxxxxx> wrote:
news:
6632cf4e-6547-4fe2-9f14-4c1f861a533f@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

awful problems on holiday and in general with my mask fogging
..... after 6 or 7 dives started fogging even after more paste.

If you don't clean the mask first,
the defog or spit will be useless.


I find that after a while both my masks will start fogging. A clean
with warm soapy water resolves this (usually washing up liquid) so
that the usual method of wiping spit around works again. I guess that
over time a mixture of grease and snot adhere to the inside and that
makes it fog.


It's usually caused by mould release agent left on the skirt when it was
made that migrates on to the lenses, so it pays to clean both thoroughly.

When new I'd agree but after a few years I am not so sure. I reckon
the glass just gets dirty and then the condensation binds to it.
Certainly making sure the mask is clean solves the problem and it
doesn't need toothpaste etc unless new.

--
Ian
.

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