spray wax

FUNX725 said:
Dr.G.---being a paint chemist...has alluded to the fact that CC-paint has a ½-life of ~5 years. By extrapolating the ½-life/5-years...to a point-in-time: You're looking at ~15 years before the expected life of CC-paint has nearly reached total-expiration.
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First off, Optimum Car Wax (OCW) is the bomb. Through personal experience I can get 5 mos. out of one application.

Second, the comment above is incorrect (with all due respect to Bob/FunX725). CC paint in itself has no half-life. The UV inhibitors in CC paint has a 5-year half-life. From a straight calculation perspective after 15-years the amount of inhibitors remaining would hover around 13%. That said, external forces such as OCW can help extend the life of UV protection since OCW's UV inhibitors can sink into the paint over time.

Note: I am not a chemist. I just have a good memory.
 
mwoolfso said:
First off, Optimum Car Wax (OCW) is the bomb. Through personal experience I can get 5 mos. out of one application.

Second, the comment above is incorrect (with all due respect to Bob/FunX725). CC paint in itself has no half-life.

The UV inhibitors in CC paint has a 5-year half-life.

From a straight calculation perspective after 15-years the amount of inhibitors remaining would hover around 13%.
That said, external forces such as OCW can help extend the life of UV protection since OCW's UV inhibitors can sink into the paint over time.

Note: I am not a chemist. I just have a good memory.
Click to expand...
First...(if memory serves me correctly):
An assumption/postulate of mine is that UV-inhibitors and CC-paint have a very close relationship; that being:
without the inclusion of such UV-inhibitors, the expected service life of the CC-paint would be dramatically affected.
Is that so incorrect?

Secondly...(And with all due respect):
-Are you assuming that UV-inhibitors must be radioactive?
-Or are you taking into consideration: "The Laws of Decay"?
-Isn't CC-paint affected by 'decay laws'?

Thirdly:
My calculations for determining the discussed half-life values...included the "mean" half-life values as well.
As such: 5(yrs.)/0.693............n!


Regardless:
-Optimum Car Wax is indeed the bomb.
That's why I initially recommended it...and still do!

-Optimal usage of OCW, no doubt, will wreak havoc on non-Chemists' (like me) half-life calculations,
whether UV-inhibitors/blockers/absorbers...and/or CC-paint...is radioactive, or not.

Happy Holidays!!


Bob
 
^^^ if UV protection is directly related to paint failure, then how are there cars that were painted 50 years ago with the factory paint intact? I understand they are single stage. Is that the reason? Surely, they were not adding UV inhibitors 50 years ago, as single stage paint oxidized fairly easily. Is SS paint in it for the long hall more than BC/CC - all factors being equal ???
 
swanicyouth said:
^^^ if UV protection is directly related to paint failure, then how are there cars that were painted 50 years ago with the factory paint intact? I understand they are single stage. Is that the reason? Surely, they were not adding UV inhibitors 50 years ago, as single stage paint oxidized fairly easily. Is SS paint in it for the long hall more than BC/CC - all factors being equal ???
Click to expand...
Some folks, indeed, take very good care of vehicles.

Based on that observation and IMHO:
There will be many vehicles, that have been painted with OEM factory BC/CC paint systems,
that will have their original paint in tact after 50 years as well.
(In fact...Some of those BC/CC painted vehicles are approaching the 30+ years mark now.)

Mike Phillips has a very nice article regarding this SS vs. BC/CC.
http://www.autogeekonline.net/forum...en-single-stage-paints-clear-coat-paints.html

In this article he even broaches the VOC-compliance issue faced by OEM's.

:)

Bob
 
FUNX725 said:
First...(if memory serves me correctly):
An assumption/postulate of mine is that UV-inhibitors and CC-paint have a very close relationship; that being: without the inclusion of such UV-inhibitors, the expected service life of the CC-paint would be dramatically affected. Is that so incorrect?

The service life of CC would be affected without UV inhibitors, even the base coat itself for that matter would be exposed. My point was and still is that it is incorrect to state that CC paint in itself has a half-life of 5-years.

Secondly...(And with all due respect):
-Are you assuming that UV-inhibitors must be radioactive?
-Or are you taking into consideration: "The Laws of Decay"?
-Isn't CC-paint affected by 'decay laws'?

I don't believe I ever stated anything that indicated "laws of decay" do not apply in this forum, let alone this conversation.

Thirdly:
My calculations for determining the discussed half-life values...included the "mean" half-life values as well.
As such: 5(yrs.)/0.693............n!

I don't understand this but to each his own.

Regardless:
-Optimum Car Wax is indeed the bomb.
That's why I initially recommended it...and still do!

-Optimal usage of OCW, no doubt, will wreak havoc on non-Chemists' (like me) half-life calculations,
whether UV-inhibitors/blockers/absorbers...and/or CC-paint...is radioactive, or not.

Happy Holidays!!

Thank you. Same to you sir. :)

Bob
Click to expand...

...
 
I can't wait to try out my Sonax Brilliant Shine Detailer tomorrow! Will be purchasing Optimum's to try out next considering the great reviews/recommendations.


-Beach
 
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