1 day 24 hours so you 16 hours detailing 8 hours for food and sleep only? Wow. Ironman record.

Yes , but the price is really expenaive , a pure graphene is totally diff with graphene INFUSED coating
If you wash your car once a week or two , waterspot is no a really big issue
But if you wash every 2 month , alll bets are off

apply is superb easy, timing to buff off and noticing high spot is different story. mine when buff off certain area will haze and if didn't notice enough, next day gg, tho it still reflects lights like a mirror until you go near to see.
my roof I still haven't buy Meguiar's Ultimate Compound to try.

speaking about towel, doing coating is wasting towel and applicator cloth. Regardless i throw into soap water and rinse, the textile will turn harden and not suitable for car paint use.

Anyone has any experience with watermark removers?

Scouting around - asides from those really cheap products - so far I've come across 2 - IGL Delete & CarPro's Spotless.

Spotless is out of stock though.

Just wondering if there's any alternatives or feedback to these products?

Hmm I see.

Thanks for the feedback.

I'm wondering if those watermarks that appears due to overnight rain and then sunny day and evaporates by itself will cause it to etch into the paint already?

I do have some water marks especially on the roof area which I can't wash off with regular wash solution.

Hmm, my parent's cars hardly clayed in years so I was using it few days ago on half bonnet on 2 cars but the marring was there on both cars.

I first noticed the marring on my own ride when I used it on the A Pillars and front fenders about 3-4 months ago. Exactly same marring as per the pic.

I am waiting for my clay bar to arrive - bought so-called 3M imitation type on Shopee and will give it a try. From what I understand, clay bars rarely cause marring if it's used well and with proper lubrication.

so what do you recommend me especially for a new car?
glossy and water beading are the reason i asking

To me it looks like your top-coat had worn out. Repainting just that panel would do, maybe around 250-300

looks suspiciously like the top coat / clear coat of the original paint work has worn off - nothing much you can do other than repaint the whole panel and then reapply the clear coat.

the reason why it got "whiter" is because your polishing removed the surface contaminants and the "glossy" effect is from the oil of the polishing compound. once the oil wears off, it went back to square one.

why would he not be able to buff the polishing oils off when it rains? did he do the polishing out in the open?

most people confused polishing and waxing and very often people thought they are one of the same so my guess is that the owner actually bought a "waxing" product (not polish) and then applied it. given how toxic tiktok is, the "wax" that he purchased is probably shi- and either is very acidic or alkaline in nature which resulted what you are seeing.

does the blemish only appears on certain spots of the front hood or is also found on other areas of the car?

by the way, did you also gauge the paint thickness on the other parts of the car (eg: the roof?) - are they consistent throughout?