A laminated windshield is a sandwich of tempered glass (for strength)
and plastic (keeps nasty shards of glass out of your face if it DOES
break).
I'm no glass expert, but my understanding is that the fogging is the
result of moisture seeping into this sandwich (whether is seeps into the
plastic or in between the plastic and glass, I don't know). That would
explain why it happens most at the bottoms and corners (where misture
would tend to collect). The variable between fogged and not fogged
windshields seems to be age, rain exposure, and quality of the seal
between the rubber and the glass.
Since it's inside the glass, replacement is the only (practical) option
that I know of.
Chris Kotting
ckotting@iwaynet.net
> I've wondered about this myself. My '74 Midget
> (originally from Florida) had a terrible case of
> fogging. The '71 parts car had only minor fogging.
> Since that car had spent it's years (the last 12 in
> storage as a project/parts car) up north, I assumed
> the real bad fogging on the other car was from the
> much stronger sunshine down south. Then I brought up
> my '71 5-speed from Tennessee, with a completely
> fog-free windshield. Now, I know they don't get as
> much sun in Tenn as they do in Fl, but they get more
> than we do in western NY, so my sun theory went out
> the, uh, windshield.
>
> What about everybody else? What causes the fog? Is
> there any way to buff it out or anything? Or is
> replacement the only solution?
>
> ===
>
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> to Nory@webtv.net
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> Don't assume that because you have found one problem, you have found the ONLY
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