schiddy said:
Quite literally ... What do waxes, sealants, and coatings protect against? What do each do that the others don't?
Here's my basic answer based upon how I've always understood these products.
Waxes, sealant, and coatings protect against the same things, namely, environmental pollutants from the air ,rain ,and water and roads, bird bombs, bugs, and the like, various forms of dirt and grime etc. They also protect against marring and general usage. In short, they guard against anything detrimental to the finish that one would find outside a perfectly controlled garage or shelter where a cherry condition vehicle would be stored.
Different waxes, sealants, and coatings protect against threats to the finish to different degrees. Factor in the numerous types of brands and particular products within them, and we have a complicated and ongoing trial and error, yet very fun process of discovering, using, and reporting about them.
As a general rule of thumb, waxes are noted for their primary ingredient, carnauaba, a natural products. It's what's responsible for the shine and the deep look and shedding and therefore some of the wax's protective properties.Waxes are noted for the awesome look they give yet they tend to be the least durable product on the finish.
Sealants are synthetics. There are several types of synthetics a sealant can be. They provide awesome looks and longer lasting protection. Ease of usage and technique can vary as well.There are also several products that combine carnauba and synthetic. I, for example, use Wolfgang Fuzion. Terrific looks,feel, and protection.
Coatings tend to be a little more involved. They bond, and it is said they even become part of the paint, creating a very long lasting, even permanent, layer on top of the clear coat. Because of this, theoretically at least, they should provide the longest lasting protection from the threats to the paint. But what about looks?