Ed,
I would offer that given your occupation in the paint industry that instead of
2 cents your comments are worth way more than that !
Leo
> On Sep 7, 2021, at 8:49 PM, Ed Pavlovic <cbq168a@comcast.net> wrote:
>
> The funny thing is that even if someone did find a sample of the prototype
> applied to an object that had not been exposed to light, it would probably be
> more yellow than when originally applied. Alkyd resins such as the paints
> used back then will yellow in the absence of UV light to some degree. The
> resins can be formulated differently to reduce this but you will make the
> dried film more brittle and prone to chip and crack, so paint manufacturers
> had to balance hardness an elasticity when formulating those paints back them
> just like they still do with modern coatings.
>
> It’s not like you could call DuPont and order a batch of that paint these
> days, lead based pigments and resins used back then aren’t available so any
> formulas that may still exist are kind of useless 70-80 years after the fact
> without the raw materials.
>
> Just my $0.02 opinion.
>
> Ed Pavlovic
>
>
>
>
>
-=-=-=-=-=-=-=-=-=-=-=-
Groups.io Links: You receive all messages sent to this group.
View/Reply Online (#62498): https://groups.io/g/CBQ/message/62498
Mute This Topic: https://groups.io/mt/85443983/703214
Group Owner: CBQ+owner@groups.io
Unsubscribe: https://groups.io/g/CBQ/leave/1544929/703214/691670059/xyzzy
[archives@nauer.org]
-=-=-=-=-=-=-=-=-=-=-=-
|