"Clay" <email@example.com> wrote in message
> firstname.lastname@example.org wrote:
>> On 4 Mar 2005 08:09:27 -0800, email@example.com (Byrocat) wrote:
>> Windex is part of the issue as it contains waxes and is the worst
>> product one could use for cleaning glass...
> A similar condition can occur on the outside of the windscreen. If one
> uses the 'drive through' car washes, the spray rinse/wax builds up on the
> glass, causing wiper chatter and other irritations.
> I find a non abrasive scouring powder like Bon Ami or Ajax on a wet
> windshield works well to remove the buildup.
> Afterwards, clean as described in Doc's post and apply Rain-Ex to suit.
A cautionary note here. I used Rain-X on my wife's windshield (well, her
*car's* windshield) and a few weeks later washed it with that Mr. Clean car
wash that doesn't need to be towelled dry. Lazy, I know. Anyway, it rained
soon afterward and the windshield was covered with a dense white waxy
coating when the wipers went over it. We pulled into a gas station where a
lot of scrubbing got the windshield to the point we could see through it.
The coating cleared up when the rain stopped, but the only way I got it off
completely was with polish from a rock tumbling kit. The two products don't
play nicely together.
And I think Ajax is abrasive (silica) - it used to be, anyway. Bon Ami, Soft
Scrub and Barkeeper's Friend are okay.