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amdx[_3_] amdx[_3_] is offline
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Default Modern car paint and rust

On 2/16/2017 7:42 AM, Ignoramus20725 wrote:
On 2017-02-12, wrote:

Right. It's better coatings, better primers and protection, and
better application. Read, water-based coatings that often are based
on urethanes; phosphate and weldable, etching primers; galvanizing
in rust-prone areas; and electrophoresis and electrostatic
application. The first water-based coatings -- used into the '80s by
some manufacturers -- had poor adhesion and didn't weather
well. They're MUCH better now.

All of this became more necessary as body panels got thinner, with
the use of AHSS (advanced high-strength steels; a continuing
evolution of the HSLA [high-strength, low-alloy] steels that were
first used in the '70s). Rust is potentially a bigger problem than
ever because the steel is thinner.


Ed, if I buy a modern car like a Honda, how long can I realistically
expect them to last?


A bit of an open ended question.
I have a 97 Toyota T-100 that still looks beautiful and runs great.
Will admit we had the sides of the bed repainted, not because of any
problem but because we used as a work truck and the idiots that loaded
it rubbed their belt buckles on the bed as they loaded it. They put a
bunch of scratches in the paint. I'm in the Florida sun and after 20
years the roof and hood still look good, we do garage it though.
Mikek

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