The main sticking point with the situation is:
"
medium priority - not too hard to apply. Car is a daily driver, so I can`t leave it undisturbed for even half a day"
Ceramics generally need 24 hour, no moisture (including overnight dew) to cure; that`s gonna knock many ceramics outta contention.
Hardness and resulting resistance to scratching is, IMO, one of the most over-hyped aspects of a coating. While it will provide some minor resistance to wash-induced swirling (and in any case, certainly more than a wax or sealant) it`s by no means gonna prevent marring should someone bang/drag their jewelry against the car while opening the door. Where a coating helps indirectly in that case is that the self-cleaning behavior of the good ones mean you wash less often, giving you less of a chance to instill small swirls and scratches.
Given your limitation regarding curing time, the only item I know of that *might* meet your needs would be Gyeon CanCoat, kind of a `coating-lite` product.
Product info for CanCoat:
https://www.youtube.com/watch?v=yKCC76DIKhE showing application
Product blurb from Autogeek:
"Six months’ worth of protection in about 20 minutes!
GYEON Q2 CanCoat is the quick an easy way to coat your vehicle with protection that will last up to six months. This super-convenient formula yields a glossy shine an insane water beading that you won’t believe is possible with so little effort. GYEON Q2 CanCoat blocks out contaminants and UV rays and the self-cleaning effect helps keep your vehicle cleaner between regular washes.
You may like the idea of a paint coating, but you may be intimidated by the application process. Or maybe you simply don’t have the time to allow your vehicle to cure for 12-24 hours before driving it. GYEON knows that just because you’re busy, doesn’t mean you shouldn’t be able to enjoy extreme water beading and that’s why they developed Q2 CanCoat!
GYEON Q2 CanCoat is the easiest to apply SiO2 coating available. The formula is ready to use and application is as easy—simply spray on and wipe off. In about 20 minutes, you’ll have coated your entire car so you can sit back and enjoy the water beading! GYEON Q2 CanCoat is durable enough to protect against UV rays, harsh chemicals, bird droppings, road salt, and other environmental contaminants, and it increase shine and gloss too!
200 ml"
If you could leave your car sit I`d recommend 22ple HPC over Kamikaze in your case, based mostly upon this post:
https://www.autopia.org/forums/car-...411-messing-coatings-final-3.html#post2126546 which shows that `something` ran down the side of the truck that left a scratch in the soft decal but did not really extend to the paint; pretty much doesn`t show true durability but, in my mind, shows that there is *possibly* resistance to scratching with this product, not that others wouldn`t show the same thing but this is the only concrete evidence I have that I could put my eyes on.
Unfortunately, the application process for 22ple HPC requires a 24hr wait between coats (most ceramics only an hour or two) which is a real logistical PIA if you can`t take vehicle outta service for 2 days at least.
My fondness for coating A or B has nothing to do with resistance to marring `cuz I believe that aspect of coatings to be somewhat minimal; I`m more concerned with:
1. Great Self Cleaning Abilities: Our cars see rain and often get rained on in the morning and then sit outside in the sun in the afternoon; don’t like waterspots. I like clean cars but don’t like cleaning cars.
2. Durability and resistance to environmental contamination like water spots and bird bombs. Don’t wanna have to worry about running home and immediately dealing with removing things that would otherwise etch bare paint. Like hard water spots did to our Corvette during the Zaino years. Also has to last cuz I don’t wanna be hauling out compounds and polishes every Spring, given reasonable maintenance.
3. Appearance: Well, stuff has to look good. Has to accentuate body lines, curves and hard edges. It needs to make me stop and admire it when walking towards it, walking away from it or catching a glance in the garage when I take out the garbage.
I like Kamikaze because of the amazing self cleaning properties and the way the different products (Miyabi, ISM, Infinity Wax and Overcoat) produce a distinct look, a combination of gloss, depth, warmth and polarizing effects on metallic`s that is pleasing to *me*, something other might not even notice but it makes me happy when I look at it. 22ple HPC is very, very close to Kamikaze in terms of self cleaning and always looking good.
The need to keep your car in service kinda takes this outta the realm of my experiences (heck, sometimes it takes me a week to finish a vehicle) so perhaps other folks with more knowledge can offer better solutions as my scope is pretty limited outside of slathering ceramics on vehicles and making totally subjective judgments based upon wholly unscientific criteria.
Mr. Lamberts suggestion above will carry much more actual experience behind it; while Polish Angel has tempted me many times, I have yet to dive in, and he has far more experience with these types of thing on a higher level; strictly amateur hour over here B)