In a message dated 10/11/2002 8:29:39 PM Pacific Standard Time,
fillinger@ameritech.net writes:
> The article I cited actually goes into extreme depth, and mechanical
> adhesion is affected by many factors that I, at least, never heard of,
> one of which is surface tension. And even solids have surface
> tension. It's true that sanding increases surface area, which
> increases the force necessary to delaminate. More important they say
> is that abrasion breaks the surface tension, and the degree of
> abrasion (if needed at all) need only reduce it below its "critical"
> surface tension, which is also relative to the surface tension of the
> paint being applied. It all has to do with the paint's ability to
> "wet" the surface.
>
> Or so they try to explain, with lots of really big words!
The amazing thing to me about all of this, as I press ahead with the smooth
prime...... If I spill it, I can never get it off! It is only when you don't
want it to come off that it will do so.
I now plan to fly the airplane with 100% primer and deal with the finish coat
later -- probably doing some test painting during the initial flight tests.
This is getting way too complicated!
Dave
A227
mini U2
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