Will a Carnuba give UV protection?

[Mochamanz1]

I Just want clarification, Is fading oxidation? Is this a change in pigmentation or deterioration of the finish due to oxidation ? I see the term fading and oxidation being used interchangeably. I just need to know if these terms are both correct.

 

[lbls1]

Weâ€â„¢ll agree to disagree on this; IMO once a wax and its oils have dissipated (melted or washed away) there is nothing left to provide protection, luster or sheen.



The melting point of a Carnauba wax is 180oF, the beeâ€â„¢s wax that is often added is 130oF and the mineral oils used to provide lubricity and gloss is 200oF. The temperature of a vehicle parked in sunlight will exceed these temperatures.



JonM

I know, this is another long winded debate as well. My wax longevity depended a lot on how well the car's surface has been kept clean, and the amount of wax that was on it. I've owned two black cars which were not covered, and they've survived several 90+ degree days with their wax surfaces intact. Fall and winter seems to work better for my wax surfaces as due to the cooler temperatures and the built up (yes I am about to say it, so get ready................)LAYERS!!!.....> deposits of wax, which also depending on how bad winter will be, usually carries me thru till the next spring.



Here is another shocker...I've also seen cleaner waxes layer and sit on old paint!!! Don't ask me how or why, but my first car had years of caked on cleaner wax that after a point looked dirty and dull. When I cleaned the surface with a paint cleaner, whala! shiny and vibrant paint!!

 

[the other pc]

I Just want clarification, Is fading oxidation? Is this a change in pigmentation or deterioration of the finish due to oxidation ? I see the term fading and oxidation being used interchangeably. I just need to know if these terms are both correct.

Both terms have specific meanings but there is overlap.



Fading is simple enough. If the color has lightened it's faded, for whatever reason.



Oxidation in it's simplest meaning is when the material reacts with oxygen.



When paint reacts with oxygen it forms compounds called oxides (no surprise there). Compared to smooth, pristine paint with rich color oxides are generally course, crusty and chalky. So oxidation does cause a form of fading on the surface.



Meanwhile, you can break down pigments into less colorful compounds without reacting them with atmospheric oxygen. UV light pounding a colorcoat that is sealed beneath a clearcoat can cause the color to fade without forming the crusty, chalky compounds like surface oxidation.



Back in the days of single stage paint they were mostly synonymous. The terminology hasn't grown to accommodate the current trends.





PC.

 

[Ben Z.]

Ultra violet (UV) protection is not water-soluble and the use of petroleum distillates (cyclo paraffin) enables them to be included as an oil-in-water emulsion in wax, polymer sealants, various plastics and rubber and vinyl dressings.



JonM

I don't understand what you mean by this. How can the property of a material (uv protection) be water soluble (or not water soluble)?



I'm really not trying to be a jerk, but it seems like a large portion of your posts are copied and pasted from somewhere else. It might help clear up some confusion if you would include your source so that we could put your answers in context. Thanks.

 

[Ed Hartman]

Some websites clearly state that waxes like Souveran and others are below average in UV protection

 

[imported_GDA4]

From my understanding, a high quality carnauba wax will last roughly 3 mos. Give or a take a few weeks depending on the elements the car is exposed to.

If you live in an area where the paint temp will be above 200F, and you visit this forum, I am assuming there are multiple coats of wax, sealants, glazes and everything else protecting the paint. So, you shouldn't have to worry.

 

[Mochamanz1]

T O PC, thanks for the information on oxydation/fading, I think I understand. So, if it fades (under Clear Coat) the only recourse is to repaint? Does Clear Coat oxydize too?

 

[togwt]

Does Clear Coat oxydize too?



Short version-Clear coat is a resin (paint) that doesn't contain colour pigmentation so the oils in the resin will dry out (oxidise)



Long version (yeah, yeah I know I usually only give one line answers, but LOL)-Oxidation (reduction) is caused by environmental pollutants (acid rain, ozone, industrial pollutants, hydrocarbons, etc) the suns heat (which also causes paint colour fading from UV radiation) inclement weather or the use of harsh detergents. Commercial car washes using strong detergents will leach out the oils in the paint and dull the paint film surface even faster



It starts as a chemical reaction that causes the paint film surface to overheat, dry out and oxidize leaving microscopic surface imperfections and micro pores in the paint film surface that are vulnerable to deterioration.



Once the air borne contaminates and pollution compromises the paint surface they accelerate the oxidation (reduction) process. It can appear as a dull and somewhat hazy, or `chalky' appearance to the paint surface, a paint film surface that is adequately protected with wax or a sealant actually has a lower surface temperature than one that is not. A dark coloured vehicle parked in the sun can attain a surface temperature in excess of 200° F



Clear coats are usually a polythene or urethane paint, that are formulated from oils, they are used to protect modern water-based paints as they provide a tough and durable protection



Primarily a hostile environment will remove the paint films sacrificial barrier and then remove the oils from the paint (paint) clear coat, leaving an unprotected surface with its microscopic gaps and valleys, allowing environmental pollutants to penetrate, which accelerates the degrading of the paint film surface eventually leading to clear coat failure and subsequent re-painting.

JonM