I don't live in a hot place but I've never seen a car newer than 10 years old
with a failed clearcoat. The CC on our '05 Golf is fine, the '04 Ranger CC was
still fine when we got rid of it. The only car I ever had with failed clearcoat
was my '83 240D which must have been a cheap repaint.
I travel to California often (in 2 weeks as a matter of fact) and I don't see a
ton of cars there with failed clear coat and you see old cars driving around LA
all the time...
-Curt
From: clay via Mercedes <mercedes@okiebenz.com>
To: Mercedes Discussion List <mercedes@okiebenz.com>
Cc: clay <redgh...@comcast.net>
Sent: Sunday, September 18, 2016 10:58 PM
Subject: Re: [MBZ] Clear Coat Question
Not sure about hot spaces, but in the wet PNW, if the dang paint failed in two
years, the car was off to the dealer under warrantee. I had a few neighbors
who had the chrysler POS paint and ended up with new paint on the car. The
newer coating lasted more than a few years.
Though a black or dark car is pretty spiffy, in a warm environment, the lighter
colors are more in vogue. Or at least they were when I lived in warm
environments. A blue was more pastel, reds were .. well, red. Light green,
orange, white, silver, all colors that would not suck up calories, which might
scorch a kid should it touch it. AT that time, not too many cars were AC
equipped, so interiors were light if not fabric.
clay
> On Sep 18, 2016, at 6:11 AM, Curley McLain via Mercedes
> <mercedes@okiebenz.com> wrote:
>
> In the case of cars in hot places, do people get them repainted with a solid
> color after a couple years, or just drive around with the clear peeling?
> Probably, it depends. The old pickup does not get painted. But does the 2
> yr old car used for business?
>
> My only experience was with Livingston, CA and people there seemed to repaint
> the cars and trucks in a solid white. But that was maybe 15 years ago when
> clear was not as prevalent. Made sense to me, it you were going to live in a
> hot place...
>
>> G Mann via Mercedes <mailto:mercedes@okiebenz.com>
>> September 18, 2016 at 12:27 AM
>> Clear coat paint is a programmed failure. Mechanically, sunlight passes
>> through the clear coat, is reflected by the base coat, which is smooth and
>> reflective under the clear coat.. when the UV light is refracted back to
>> the surface of the clear coat, it is reflected back to the base coat,
>> because the surface of the clear coat "on the surface" is cloudy and the UV
>> light can't get out.. so it bounces back and forth, all the while
>> microscopically super heating the clear coating, which caused it to
>> separate from the base coat and fail...
>>
>> Bad system design... Looks nice for a couple years.. then fails
>> progressively faster... By it's nature.. it "bonds" to the base coat.. so
>> can't be stripped as an individual coating...
>>
>> In Arizona.. where clear coat failure only takes one year instead of two,
>> because the sun shines 353 days of the year..
>>
>> Grant...
>>
>> On Sat, Sep 17, 2016 at 10:05 PM, clay via Mercedes <mercedes@okiebenz.com>
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>> clay via Mercedes <mailto:mercedes@okiebenz.com>
>> September 18, 2016 at 12:05 AM
>> Gump had a massive case of clear coat Leprosy. I used a razor to cut away
>> the really bad patches. I also did the sanding of edges to try to feather it
>> in an attempt to get it to stop spreading. The stuff was resistant to my
>> ministrations. I suspect there was a respray at one time and the coat was
>> destined to fail. My suspicion would be that complete removal by sanding
>> would give you a much better surface to begin with. Polei has a few spots of
>> entrenched clear ( really small less than a folded dollar) that I sanded
>> down the edges if I could not completely obliterate. I used 80 grit as a
>> first phase, then went 100/150 then 220/320 before I did a 400/600 sanding,
>> which ended with 800/1000 so that there were no hard edges or the stuff was
>> gone.
>>
>> clay
>>
>>
>>
>>
>>
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>> Dan Penoff via Mercedes <mailto:mercedes@okiebenz.com>
>> September 17, 2016 at 6:39 PM
>> I am going to look at a W126 tomorrow that has clear coat peeling on the
>> roof. The rest of the car might be OK, so I’m trying to get a feel for what
>> I might be getting into should I want to buy it.
>>
>> As an interim approach, can the edges of the clear coat be feathered and
>> just polished or buffed out so it blends into the surface?
>>
>> I assume that clear coat could be reapplied to seal the area back up again?
>>
>> Any paint enabled folks here who want to comment or make recommendations
>> would be appreciated.
>>
>> Dan
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>
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