Bgrigg wrote: |
LOL I've always thought an expert was someone who got paid for their opinion? To whom do I send the invoice? I think we're talking past each other, you say it helps dirt from sticking, I say it prevents it from dirt touching, neither of us actually use it on our floors! I will defer to your acknowledged and far greater opinionation (new word!)! I paint over Future all the time, everytime I paint a canopy, in fact, though I have never come up with a scenario where I would use Future, then paint, and then mask and paint some more! |
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"opinionation"-I like that-cool
One defination of "expert":
Pronunciation: Ex-Spurt
Ex- A "has-been"
Spurt- A drip under pressure
I don't make these things up, I just repeat 'em.
On one website I inadvertantly "stepped on the toes" of their resident "self-appointed expert" on a matter (not this one), and from there on out, he forever would nit-pick me everytime I would try to help someone out.
Warning:
The following information has no real value to anyone building a plastic scale model, so if it gives you naseua, vertigo ,or otherwise has an adverse affect on your sanity, just ignore it.
I do not know if my credentials are unusual for a scale modeler, but in fact I have a degree in engineering, and in fact as a design engineer have done complete engineering design projects, where I have in fact under the duress of having to earn my pay as a engineer, done calculations regarding "coefficient of friction" (or, "friction cohesion"), and so due to circumstances beyond my control, I have the misfortune of being intimately familiar with such properties.
After leaving engineering, I went into selling industrial products that required applications sales engineers, and one line I very successfully represented for a good length of time was a complete selection of building repair and mintenance and repair products, which included a complete line of floor coatings, including an excellent acrylic product. So there again, as a successful sales engineer/industrial coatings consultant, I had the misfortune of being forced to know and experience the application of something that has essentially nothing to do with everyday life, but it paid well.
Not wanting to embaress anyone, or hurt anyone's feelings, I withheld this information, I did not want to get into a "spitting contest" over semantics, and I am grateful that did not happen.
Now, in case you might find it a helpful bit a trivia, here are the terms that we might have gotten confused and/or misused:
- Coefficient of friction (or, "friction cohesion"), is the amount of "drag" an object has as it slides along a surface. Obviously, a lubricant such as oil (or any other viscious liquid) reduces this, and that is why when a janitor mops a floor, he put up a barrier warning that the floor is wet. An engineer considers this property when he is designing a sliding conveyor for a major manufacturer, like I was forced to, under the terrible condition of being paid for that kind of work.
- Surface adhesion is the property of a coating material to "stay where it is put", or not peel or flake right off. This property can be enhanced by various surface preperation methods, such as roughening with an abrasive and/or the use of a solvent that can soften the surface of certain materials, such as plastics, tiles, lineoleum, etc. On the other hand it can be reduced by applying a coating that when it sets up, is smoother and harder then the suface underneath. These coatings can include various epoxy coatings, acrylic, urethane, varnishes, and enamel paints. All of these I have either personally used and/or sold for others' use, and as a "good sales rep", I have inspected the final results of the various applications to ensure the customer's satisfaction.
The second item, or surface adhesion, is actually the one in question here, and as a former coating consultant with acrylics experience, I feel that I can say that as my educated opinion, that applying a general coat of a top-grade hard-drying shiney acrylic Future floor finish to a scale model as a surface prep for painting is not a very good idea if you want your paint to "adhese".
This and all of the above information and a dollar is good at any McDonalds for a cuppa coffee.
Tom
Tom T
“Failure is the opportunity to begin again more intelligently.”-Henry Ford
"Except in the fundamentals, think and let think"- J. Wesley
"I am impatient with stupidity, my people have learned to live without it"-Klaatu: "The Day the Earth Stood Still"
"All my men believe in God, they are ordered to"-Adolph Hitler