To me:
There's so much misinformation circulating with regards to car care products.
This includes the ambiguous, and confusing use, of the term
"petroleum distillates".
I've learned (over the ages) that those who make blanket statements like:
Products containing petroleum distillates are harmful to vehicle finishes (paint, plastics, etc.)...
either have no real knowledge of science and petroleum refining; or is propogating false information
to scare consumers in order to sell their wares. This is unfortunate and reflects, IMHO:
The seamier side of advertising and negative marketing.
Disclaimer:
I'm no Chemist or petroleum refiner (but I play one or the other on TV, on occasions):
But it never seemed to take much effort on my part to learn petroleum/petroleum-distillates "basics".
I. What exactly are Petroleum Distillates?
A.) No reason to be mysterious:
They're products made from crude oil (mix of hydrocarbons and impurities) that have been distilled in a refinery.
Further, and further refining...for further and further purification may follow.
All petroleum distillates are not created equal. There are so many totally different types and sources,
often with completely opposite characteristics and uses. Not all look like a black tar.
B.)
Distillates: Sounds almost ominous.
Distilling provides benefits such as removing impurities from crude-oil and other substances....makes them more useful.
The testimonials for using
Distilled Water for detailing purposes are glowing, to say the least.
II. What is happening during the Distillation Process(es)
A.) The primary function of an oil refinery is distillation:
The seperation and purification through the high-heating of the crude-oil in huge vessels---Stills.
B.) The lighter components of the crude-oil mix boils off first, and rise to a higher point inside a tower above the still.
The heavier components boil off at higher temperatures and condense back into liquids more quickly.
These products are captured at different levels in the towers .
C.) The lighter, and therefore: more volatile components...are used in gasoline, or solvents.
The next heavier components may be used as diesel fuels. And so on down the line, as it were.
D.) Often any left-over crude-oil is subjected to even more refining where
even more compounds are formed and undergoes further distillation.
III. "Refining" the results of petroleum-distillation
A.) There are three general classes of compounds resulting from this/these process(es):
1.
Aromatics: Strong solvents and as a base in manufacturing products such as carburetor cleaners,
paint removers...any product where strong solvency is needed.
2.
Naphthenics: For the manufacture of "light" oils, solvents, detergents, "dryers" in paints
3.
Paraffinic Hydrocarbon Compounds: These have much less solvency, and are purified further.
They are used in a myriad of consumer products such as:
Lotions and skin creams, laxatives, medicines, automotive waxes and polishes (for painted, vinyl, plastic surfaces).
As you can see:
All of these products started out as petroleum-distillates...
but ended up being as different as night and day.
Why is this so? This is because petroleum distillates can be further purified, re-distilled, reacted and combined with so many other chemicals to produce a wide range of useful products.
IV. What are the benefits of having certain types of petroleum-distillates as part of car-care/appearance products' fomulas?
A.) They are very affordable for use during these products' manufacturing process(es)
B.) They quite easily dissolve waxes and silicones
C.) Acts a medium to allow these products to be spread on a surface.
D.) They "cut-through" oily dirt/light grease
E.) Provides lubrication to surfaces to help prevent scratching.
F.) Special attribute/quality:
The most effective
UV-Blockers, if they are to be included in these products formulations,
are soluble in petroleum distillates.
The same can't always be said about other
"carriers", like water...and oils-of-essences (amyl acetate/pear/cucumber/etc. oils, for example).
-And we all know the important role that UV-blockers play in the protection of surface deterioration!!
V. In summation
A.) There are a large number of products available today that contain petroleum distillates.
That mere fact doesn’t tell the whole story about products' quality.
B.) Product Labeling/MSDS's (REQUIREMENTS?)
1. The Consumer Product Safety Commission requires any products that contains "lighter" petroleum distillates in its formula to be labeled with a warning that it
"contains petroleum distillates".
(This warning is provided not so much to help us consumers in their recognition,
but as an alert for the medical providers in understanding the proper treatment that's required, usually for children, that have inadvertantly come into contact with petroleum distillates.)
2. A product's MSDS will, or should, contain a petroleum distillate's CAS #. This information will help
in identifying the type of petroleum distillate(s) that are contained in a product.
C.) I am suspicious of companies and products that rely on negative advertising, rather than selling their product on its own merits.
Therefore, I rely on a manufacturer’s reputation; and on recommendations from other users when judging what product to buy for
the first time; and then by my own experience after I’ve used it for a period of time.
D.) Taking into consideration the three categories of petroleum distillates:
Car-care products that are to be used on plastics, vinyl; and rubber surfaces should be formulated from
very special grades of petroleum distillates that contain little, if any, aromatic and naphthenic compounds/molecules.
In other words: Highly refined paraffinic distillates. Sure they'll cost more.
But it helps me in being assured that the product does not attack the surface or remove important components from these materials.
Instead...they'll clean and lubricate these surfaces...leaving behind their protective waxes and/or silicones.
Hope this helps some.
Bob