ToothPaste????

Harry Brogan said:

Take a look at this. Scroll down to page 4 where he is talking about
eyewear. It is mentioned here that one "solution" is to rub
toothpaste on your lenses. I have NEVER heard of this as most of the
toothpaste I know of is and abrasive and would scratch the lenses.
Has anyone else even heard of this "solution"??????

Yes, it works reasonably well. The toothpaste is abrasive so you're
polishing out scratches, but not so abrasive that it causes noticeable
scratches itself.

Try it on some old glasses or somethhing.

Harry Brogan said:

...one "solution" is to rub
toothpaste on your lenses. I have NEVER heard of this as most of the
toothpaste I know of is and abrasive and would scratch the lenses.

Tooth paste IS abrasive, but on a very fine level. Can't say I've tried it on glasses/goggles, but I have used it with some success to polish the display of an mp3-player.

Harry Brogan said:

....Has anyone else even heard of this "solution"??????

As an anti-fog remedy, no.

try the reverse on glass lenses
wipe the glass with lacquer thinner.

"yo delores, wher's muh lacquer thinner "?

Harry Brogan said:

Take a look at this.  Scroll down to page 4 where he is talking about
eyewear.  It is mentioned here that one "solution" is to rub
toothpaste on your lenses.  I have NEVER heard of this as most of the
toothpaste I know of is and abrasive and would scratch the lenses.
Has anyone else even heard of this "solution"??????

http://www.gptn.org/GPTN_Jan08.pdf

Pretty neat. I've heard of rubbing a cut potato against a lens to
prevent fogging, but never tried it. What's in the toothpaste?

I'll have to try that with my full face moto helmet.

/s

"Scott Gordo" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

Pretty neat. I've heard of rubbing a cut potato against a lens to
prevent fogging, but never tried it. What's in the toothpaste?

I'll have to try that with my full face moto helmet.

Two relevant things in the toothpaste : detergent/surfactant, which will
prevent fogging by reducing the surface tension thus discouraging it from
forming droplets, and titanium dioxide, which is nice and hard and hence
abrasive, and if overused will do nasty things to your lenses.

So take care...

cheers,
clive

"Clive George" wrote: (clip)if overused will do nasty things to your
lenses. (clip)
^^^^^^^^^^^^^^^^^^^
Not really. If you go to TAP Plastics and buy the product that's made for
this, it comes in three grades of fineness. ANY polishing material is going
to do some cutting. Toothpaste is so fine that the scratches are too fine
to see, so they have no effect on your vision. If you are removing
scratches from a lens, however, you HAVE to remove some material, so you
will change the local curvature. This could produce a little distortion or
unfocussing. Since toothpaste is too fine to remove deep scratches, there
is little danger of this.

datakoll said:

try the reverse on glass lenses
wipe the glass with lacquer thinner.
"yo delores, wher's muh lacquer thinner "?

The kids huffed it all in a baggie
--
Andrew Muzi
www.yellowjersey.org
Open every day since 1 April, 1971

Harry Brogan said:

Take a look at this. Scroll down to page 4 where he is talking about
eyewear. It is mentioned here that one "solution" is to rub
toothpaste on your lenses. I have NEVER heard of this as most of the
toothpaste I know of is and abrasive and would scratch the lenses.
Has anyone else even heard of this "solution"??????

http://www.gptn.org/GPTN_Jan08.pdf

I've never used it on sunglasses or ski goggles. It is pretty common
among divers.

A Muzi said:

datakoll said:

try the reverse on glass lenses
wipe the glass with lacquer thinner.
"yo delores, wher's muh lacquer thinner "?

The kids huffed it all in a baggie

Patio sealant's much better.

http://en.wikipedia.org/wiki/Citizen_Ruth

Harry Brogan said:

Take a look at this. Scroll down to page 4 where he is talking about
eyewear. It is mentioned here that one "solution" is to rub
toothpaste on your lenses. I have NEVER heard of this as most of the
toothpaste I know of is and abrasive and would scratch the lenses.
Has anyone else even heard of this "solution"??????

http://www.gptn.org/GPTN_Jan08.pdf

Suppose that I should have mentioned that I wear prescription
sunglasses when I am riding during the day. I don't really want to
take a chance on messing them up. I cannot afford to replace them at
the drop of a hat.

I rode motorcycles for many years and I did use Rain-x and other
things of that nature. But in all of my riding time on motorcycles
and/or bicycles it was never brought up about using toothpaste.

Unfortunately, the folks that read that article will probably take it
to the extreme and scrub the [censored] out of their lenses and then wonder
why everything looks so strange.

missing the oint here guys. the abrasive grinds off surface into a gum
then you press the gum into scratchs. filling scratches with the gum
eliminates wavelength bounce off scratch walls, a mirror effect-you
see the scratch walls sides not thru the scratch walls. With gum in
them thare canyons, light wavelengths go in and diffuse to a darker
image-no scratch only a wee bit 'o darkness.

I assume canyon filling is also done with eyeglass silicone-no
toulene.
best way to avoid scratchs is never wipe the surface with a cloth or
brush. very dilute dishwasher detergent and running warm tap water.

datakoll said:

missing the oint here guys. the abrasive grinds off surface into a gum
then you press the gum into scratchs. filling scratches with the gum
eliminates wavelength bounce off scratch walls, a mirror effect-you
see the scratch walls sides not thru the scratch walls. With gum in
them thare canyons, light wavelengths go in and diffuse to a darker
image-no scratch only a wee bit 'o darkness.

I assume canyon filling is also done with eyeglass silicone-no
toulene.

Rain-X also works by canyon filling. Highly recommended for cars with
unreliable windscreen wipers.

Ben C said:

Rain-X also works by canyon filling. Highly recommended for cars with
unreliable windscreen wipers.

Dear Ben,

However Rain-X works, it's wonderful stuff, both in its clear thin wax
form and as that lurid pink wiper fluid.

Wiper blades tend to be unreliable in Pueblo, where they tan for about
fifty weeks per year in thin air that gives skin and eye doctors
plenty of skin-cancer and cataract work.

It's fun to watch everyone else on the road peering through their
uselessly scraping wipers in our rare rainstorms.

Even more fun is having a passenger ask you what the hell kind of
windshield you have that you don't even have to turn your wipers on?

The best response is a solemn expression and a shy confession that you
used to be able to walk on water, but age has reduced your powers.

Cheers,

Carl Fogel

Quoted message said:

Even more fun is having a passenger ask you what the hell kind of
windshield you have that you don't even have to turn your wipers on?

The best response is a solemn expression and a shy confession that you
used to be able to walk on water, but age has reduced your powers.

My issue with Rain-x is that it does not work below 35mph. You need to
use your wipers. When using wipers, it leaves a film on the windshield
that actually makes it harder to see. Not to mention, the wipers wear
it off.

Quoted message said:

Carl Fogel

datakoll said:

missing the oint here guys. the abrasive grinds off surface into a gum
then you press the gum into scratchs. filling scratches with the gum
eliminates wavelength bounce off scratch walls, a mirror effect-you
see the scratch walls sides not thru the scratch walls. With gum in
them thare canyons, light wavelengths go in and diffuse to a darker
image-no scratch only a wee bit 'o darkness.

I assume canyon filling is also done with eyeglass silicone-no
toulene.

Not all polishes work in this manner. In the automotive products
arena, there are fillers and there are raw polishes. Fillers are used
as a final type product whereas polishes are used as a prep product.
(Fillers are not favored by pro detailers, but they go over well with
the general public).

toothpaste's abrasiveness is from diatomacious earth? not diamonds or
silica. Rain X may be toxic to your eyes. there are people grinding
lenses for a hobby and I'm sure are cloted somewhere in cyberspace.

datakoll said:

toothpaste's abrasiveness is from diatomacious earth? not diamonds or
silica. Rain X may be toxic to your eyes. there are people grinding
lenses for a hobby and I'm sure are cloted somewhere in cyberspace.

Diatom cell walls are indeed silica:
http://www.indiana.edu/~diatom/diatom.html
--
Andrew Muzi
www.yellowjersey.org
Open every day since 1 April, 1971

http://www.microscopy-uk.org.uk/mag/indexmag.html?http://www.microscopy-uk.org.uk/mag/wimsmall/diadr.html

Harry Brogan said:

Take a look at this. Scroll down to page 4 where he is talking about
eyewear. It is mentioned here that one "solution" is to rub
toothpaste on your lenses. I have NEVER heard of this as most of the
toothpaste I know of is and abrasive and would scratch the lenses.
Has anyone else even heard of this "solution"??????

http://www.gptn.org/GPTN_Jan08.pdf

Need I be the only one to offer an alternative to toothpaste (which in some
cases is very abrasive, and either way, is WHITE so you can't see through a
thick application).

Detergent is a common one for swimming/ocean gear, or, in a pinch where
nothing else is available, some spit?
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