Newbie mask question

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mib - 03 Dec 2006 09:48 GMT

Morning All

Very new to scuba - 5 pool dives so far and I've got the bug!!!!!

However, I've bought a mask and snorkel and I'm sure I was reading about the
mask needing to be prepared?

Can anyone point me in the right direction.

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Dave R
_______________________________
MIB
http://www.daveritchie.com

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psmvsl@yahoo.co.uk - 03 Dec 2006 13:22 GMT

>Morning All
>
[quoted text clipped - 4 lines]
>
>Can anyone point me in the right direction.

Just needs to be thoroughly cleaned, best thing to use is a light
abrasive such as toothpaste

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Rick Hughes - 03 Dec 2006 18:58 GMT

> Morning All
>
[quoted text clipped - 4 lines]
>
> Can anyone point me in the right direction.

Most people use toothpaste - rub it on with finger then rinse off.

There are those that state that the use of abrasives will put tiny scratches
on the glass and make it more liable to fog up.

There are products that will do this without abrasives i.e.
http://www.salclear.com/nmp.htm

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Nigel Hewitt - 03 Dec 2006 19:20 GMT

> Most people use toothpaste - rub it on with finger then rinse off.
>
> There are those that state that the use of abrasives will put tiny
> scratches on the glass and make it more liable to fog up.

Huh?
I thought the whole idea was to produce a microscopically streaked
surface so moisture can't form in droplets but spreads into a smooth
transparent layer on the surface. The other thing that toothpaste does
is clean off the surface treatments needed to give the 'I'm bright and
clean! Buy me!' look in the shop which make matters worse in the water.

The best stuff to stop a mask fogging I ever tried was photographic
rinse aid. I only used it once and it worked 100% at the start of the dive
but it made my eyes sting so much that by the end of the dive I couldn't
tell if the mask was fogged or not. That was a school mask that some
clot tried silicon grease on because he thought spitting in it was yucky.
I said I was sure I could fix it but I failed so it went in the bin.

nigelH

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Keith Manning - 03 Dec 2006 22:27 GMT

>> Most people use toothpaste - rub it on with finger then rinse off.
>>
[quoted text clipped - 16 lines]
>
> nigelH

I thought that the idea was to get the traces of silicone left from the
moulding of the skirt off, but I could be wrong. And its too late to look
for a reference.

Keith

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Rick Hughes - 04 Dec 2006 10:52 GMT

>> Most people use toothpaste - rub it on with finger then rinse off.
>>
[quoted text clipped - 5 lines]
> surface so moisture can't form in droplets but spreads into a smooth
> transparent layer on the surface.

Not heard that, there are some explanations on the site I gave the link for
... I thought it was just to simply remove the moulding release oil ? ....
some gets left on glass as part of manufacturing process.

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Blah - 04 Dec 2006 10:58 GMT

>>> Most people use toothpaste - rub it on with finger then rinse off.
>>>
[quoted text clipped - 8 lines]
> ... I thought it was just to simply remove the moulding release oil ? ....
> some gets left on glass as part of manufacturing process.

The sort of masks i'm used to - Cressi Matrix, Mares etc have glass that
is clipped or screwed into a frame along with the skirt - much like a
pair of glasses, so this explanation doesn't hold water.

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ajtessier - 06 Dec 2006 00:46 GMT

You need to clean the silicone skirt as well as the glass and it takes two
or three cleanings in my experience. Not sure how this oil gets on the
glass, it may be just from handling during the manufacturing process, but it
does need to be cleaned off to avoid fogging.

Al
Bottoms Up Divers

>>>> Most people use toothpaste - rub it on with finger then rinse off.
>>>>
[quoted text clipped - 11 lines]
> is clipped or screwed into a frame along with the skirt - much like a pair
> of glasses, so this explanation doesn't hold water.

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