Bence said:
Japs manufacture excellent glass coatings. And I don't mean a coating for glass, but a glasslike coating for paint. It's harder than the typical CC, significantly longer lasting than a sealant and usually extremely hydrophobic (but there are a few manufacturers who have 3 different "flavors" in hydrophobic behavior). Usually, they are 1-2 µm thick.
Similarly, Soft99's long lasting sealants are worth a try IMO (haven't tried myself).
Coatings from G'zox, Echelon, Bliss, Aquaglasscoat (Korean), JGlaze, KeePre, etc. are deffo recommended.
Good one, Bence!!
Many coatings are re-packaged and sold as different brands from diff countries.
Whatever, I hv tried some of them and I would say, based on my testing on soft clearcoats, the areas of concern are:
Coating Thickness.
In order for certain qualities or features to be realised, the coating must reach a specific thickness. This depends on application method (by hand or by spraygun).
Many coatings that I tried, had to be applied by spraygun, and it uses quite a fair bit of coating to cover an entire car.
Applying by hand might result in uneveness, and even the water beads don't look nice.
So far, spray gun is still the best.
Buffing Off.
Although easy to apply, buffing off could be a problem as drying period critically depends on temp and humidity. Wait too long and/or buff off with the wrong type of mfiber cloth, you might get fine scratches (eg Sonax Nano Lack Protect). This is especially apparent on those coatings with nano particles/nano technology.
Hardening Period.
Even a 24hr curing period does not mean the coating has reached max hardness.
If scratch -resistance is one of its features, this might not be fully effective until 2-3weeks later. This is based on my testing.
Resistance to Stains.
Some of these high-tech coatings, still leave the paint prone to stains, and difficult-to remove bugs splatter residues.