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TOGWT said:~ One man’s opinion / observations ~
I hope to have learned enough to realize that I know nothing at all.
TOGWT said:~ One man's opinion / observations ~
Q: Is it real important to wait 12+ hours between topping NXT with a carnuba?
A: Yes
Q: What will be the problems if I don't?
A: Product will not cross-link (cure) and durability will be compromised.
Bonding and Cross-Linking Process:
First, and most importantly, thoroughly prepare your paint film surface, wash, use detailer's clay, polish and apply a pre-wax Cleaner
Adherence- the application of a thin even film of product to the paint film surface bonds by surface tension
Drying- the primary catalyst is an aerobic process so sufficient drying time should be allowed. This will vary in accordance with the product formulation, temperature and humidity of the ambient air.
Removal- remove product residue by buffing, using a clean dry towel and a light even pressure
Cross-linking allow sufficient time (anything from 12 to 72 hours dependant upon product formulation) to elapse to enable product to cross-link (cure) before the application of further layers or other products. Avoid rain or washing vehicle until fully cured.
DETAILKING said:I have always tried to find out not just how it works, but also why it works. With that in mind I probably respond with more detail than some think is necessary. But I try to write in a way that helps the reader to understand not only "How" to do something, but "Why" they are doing it.
TOGWT said:~ One man’s opinion / observations ~
I have always tried to find out not just “How it works, but also “Why� it works. With that in mind I probably respond with more detail than some think is necessary. But I try to write in a way that helps the reader to understand not only "How" to do something, but "Why" they are doing it.
If the terminology is incorrect please feel free to offer your opinion, so we may all learn something.
I’m just a dumb Architect, so I have always tried to learn from other people. Even after five decades of detailing, the more I learn, the more I realize what I don’t know, and at some point, I hope to have learned enough to realize that I know nothing at all. I
~Hope this helps ~
Knowledge unshared is experience wasted
justadumbarchitect / so I question everything/ Jon
Mr. Chemist said:Well...I'm just a dumb ol formulator of car care products...but I guess I'll just have to eat some crow here..I never should have posted "Huh?"
Seriously...using chemical terms incorrectly does not educate, it miss-informs.
Personally I don’t want to become a chemistry teacher, at this point, I prefer to emphasize process and product. I'm just a formulator, I'll leave that education stuff up to the chemical engineers...but if I see something that is really out of whack...I will mention it. Hopefully in the future I will get better at it..but hey I’m a nubi here. This is not as much fun as my beakers.
SteveOst said:Great post! Very valid points. However, your answer brings up a slighly off-topic question. What's the difference between a "formulator" and a "chemical engineer?"
DETAILKING said:BW...here's a thought...
Now to an interesting question about cross linking and oils....could it be that a certain amount of oil in a formulation would be beneficial...that is although it may interfere slightly with the cross linking process, it does not halt it completely...and the benefit derived from the addition of the oil would outweigh the slight negative effect on durability...in other words a good trade off....So, I don’t think you can say categorically that a product with some oil in it does not cross link...it's just that the process may not be as complete as it could have been without the oil. Also, we would not want "complete" cross linking to occur as then it would be "like paint"...very hard and could chip, fade and peel, much like those acrylic coatings of a decade ago that caused so much trouble. They really cured hard.
---------------------------------------->If the oil interferes even slightly with the crosslinking and decreases the "much sought after durability" that people seek, why include it in a formulation? What benefit does it have in a polymer formulation? I don't agree with the "complete crosslinking" statement as the physical properties of a final cured polymer depend more on which ones are used to begin with. Not every polymer that is completelly crosslinked is hard, brittle, chips, fades,etc. Different polymers have different properties. Selection is important. If an oil is added in order to attain some desirable properties at the expense of durability, it sounds like someone better go back to the benchtop.......
Also, we would not want "complete" cross linking to occur as then it would be "like paint"...very hard and could chip, fade and peel, much like those acrylic coatings of a decade ago that caused so much trouble. They really cured hard.