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Nov 2015
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Nov 2015
Aug 2016

My car (Land cruiser) stands in an area where acid rain (mostly Hydrogen fluoride, HF) is common. HF is used for glass etching, so the biggest impact is on the windows. I noticed one day slight etching and saw it was growing by the time. Toyota in gulf is mostly filled with dumb people, they advised to replace all windows for 2500 $. After some search i found a way to remove etching. Initially i used sodium bicarbonate, by rubbing just by hands which was effective for thin layer but not full recovery of glass.
Had to use a drill with felt pad and finally cerium compound and glass comes as crystal clear.

Now i can see some deposits on car paint, sometimes yellowish and it must be HF acid rain. A local shop has agreed to repair in $$$. But my main concern is what he will use, considering poor knowledge of repair shops in this area and where Toyota is of no help. I have no experience of a paint related job, want to seek some expert opinion of removing deposits from car paint. If there are some compound polishes or relevant chemicals that can help to do the magic.

if the paint is acid etched, the clear coat will lift off soon, you will need a proper paint job to restore it.

dont be surprised on the stupidies you see in GCC etc. about 90% of any staff in any capacity is dumber than rock.

You need proper car detailing with a serious, hard paint coating/glass coating on it to provide maximum resistance from etching.

Moreover it is advised that you wash ur car soon after it rains, it should be a simple quick wash with hose and car shampoo. The thing is, that if your paint has no wax/sealant/coating on it.. the acidic water will eat through it, really really badly! (People assume water is harmless to paint, hard water or acidic one is fatal for it) But if there is some protection on it, it will resist the harm better.

Paint coating/glass coating is the toughest protection you can buy. So go for a full detail and protection.

Also you may keep a quality detailing spray + 2 Micro fibre towels handy... Just to wipe and water marks you come across, or when u dont feel like giving ur LC a full bath

You should opt for protection on windows and rims too.. there are many specific products out there, specifically designed.

Apart from all the protective coatings suggested by others why not invest in a waterproof cover for your vehicle? Or if possible assemble a shed and park your Landie under it. That should help a bit.

apply gently (proper) scrubber first then apply good quality cutting cream on affected areas then wax it you will see the difference.

I think you never have experienced a paint job with acid rain damage. Nothing short of full repaint can repair that damage and there is no coating shorter than a caustic grease coating that can save the paint work from it.

Acid rain can lift off the clear coat and then get to work in lifting off the base coat too. I have seen it multiple times.

best thing to do

after the damage is fixed that is

this creates an interesting set of problems, the place where the OP is parking is probably not owned by him, parking a car under a cover or constructing a make do shade can be illegal.

Well depends how bad it is... car coatings are designed to resist to acids, surely their life would be drastically reduce with constant exposure. But the way OP is telling that he first noticed some spots on windows and now some on paint it definitely means the problem is at an initial stage.

I am an accountant by profession but have a detailing centre as a hobby and a side business, we have had local cars with all sorts of paint damage and putting in some love and effort usually sorts it out... modern day paint jobs are thin but very hard and are pretty resistant.

The damaged layer of clear coat can be removed and a strong paint protection can be applied to protect it. Waxes/sealants wont do much, he needs some real tough paint coating.

Acid rain is pretty common in Japan and most of the cars that come from Japan has some sort of paint and glass treatment applied to them, still you can find that they do get bad water spots specially on the glass. However if u ask me as a detailer, the paint job is 2000 times better than local cars and its a quick n easy fix to make a JDM import shine again! Even being 3-5 yrs old they just have very little swirls and scratches and none of the acid rain succeeds to eat through the paint!

Im not into detailing but I have done bodywork and mechanical work myself on all sorts of cars. This person has a GCC spec land cruiser which does not have the piece of scrap quality paint that is done on JDM cars. The GCC paint is a bit different (if you recall old corollas/civics/lancers/accords/galants/coronas/charade/justy etc etc that used to be imported into Pakistan as "new cars") - they had far better paint quality than the "JDM aka reconditioned" cars.

anyway - we are not discussing local vs japani paint - because if you want to discuss that then I will drag in 80s VW and SAAB cars - their paint quality was like diamonds compared to japanese cars.

You are very mistaken by the concept of champi paalish of cars, you are limited at only beautifying whatever you have to work with - so please explain to me that how would you go about shining up a car whose clear coat is gone/delaminated - just as you mentioned above.

If you do have such a technique that can repair acid etch and clear coat delaminate damage on vehicular finishes as field service and within sensible budgeting then there is a job opening for you in one of the biggest names of chemical research - you can make billions of dollars if you can prove what you claimed.

Dude... he has acid rain, acid rain is almost everywhere in the world these days! He hasnt got pure HCL spilled over his car!

As I said, only OP can tell how bad it is! Why are u assuming his clear coat is already gone? and where the heck I mentioned that a car's paint can be revived if its clear coat is gone?

We are not talking ebt cars that were parked in the barn for years! Its a daily driven and probably a newer model car.

acid rain damage when in concentration that even his glass was etched is called too much damage aka irrepairable on the paint surface. It might look fine n dandy right now, but the clear coat will delaminate - it has been seen even at brand new car parking lots outside assembly lines. Such cars are repainted by the same assembly line and then shipped out, there is a makeshift setup nowadays that apply a plastic sheet to the whole finished cars (audi are famous for this). Nissan, Subaru, Honda and Toyota only do that on the horizontal surfaces to protect from this very phenomenon.

Your answer to the clear coat revival is highlighted.

My intention here is to help the OP with some little knowledge that I have in my field. I have no intentions of starting an argument with a third party.. but you very much seem to have an intention to argue.

You are listening not to understand, but to argue... a problem very common with senior Pakeheelers Im afraid.
Good for you, you can very well have your pride and self belief of rightoeousness!

You and me are way off in definition of etching, I believe you think etching means a paint thats gone and cracking off...

Every car has 50-100 or more microns of clear coat, etching would appear on it as small spots were the acidic material is slowly eating up the paint... if the acid has not already gone all the way through the depth of clear coat microns. It can very well be buffed out and repaired.

Stuborn water spots on windows are also etchings in detailers language... but that does not mean he has got holes in his glass! And those can be very well reduced or removed with right tools too.

Now as I expect my reply would really burn your ego, I will calmly request you not to re-quote my post with your knowledge full of high tec 80's saab's paint work!

Peace & out.

huh?

ego? - have I ever given any advice out of ego issues? - I have met a few members here and I think they can attest that I am a common man, almost invisible if you met me in real life.

now - you mention that hard water stains on glass as etch, I would disgree because, that stain is actually a "stain" its a buildup of material which is adhered to the glass, etching on the other hand actually changes the physical surface of the material irreversibly. e.g. if you acid etch a brass item, you cannot restore it back without mechanical means which means removing that etched layer, speaking of the same brass material - they do get tarnished which are reshined with some naphta distillate, the tarnish is not classified as etch.

using the same example on paint, you can fill in microscratches on paint from wear and tear (debris hitting it on highway) because the coat structure is intact - you can cut it down to "polish" it but there is no way to revive an acid eaten clear coat as it delaminates (in this case so strong that even the glass is etched), its not about ego or SAAB paint or trying to diss detailers - but there are certain limits on repair fundamentals.

examplifying mechanical terms - if a cylinder is worn oval and has bad compression rings on the piston, using liqui moly ceratec wont magically build up the missing metal. The only repair that can bring it back to service spec is a larger rebore and replacement of piston and ring assembly.

We dont know if the OP actually cares about this truck finish (honestly I have never found a land cruiser owner who shines his truck) - but my posts are backed on experiences I have studied and seen on production line as well. The slime coating used in olden days was exactly that, mercedes benz used cosmoline - I think we are discussing two avenues - you are assuming its a peppered surface, while Im recalling the ugly etching that I witnessed.

its a literal LOL moment when the originator wants no comments on a conversation.

examplified in this thread by you dragging in JDM paints are amazing and local paint is worse than spreading ICI acrylic enamel with a brush.

the car being discussed is neither JDM nor Pakistani - its GCC spec export model land cruiser - which we dont even know if its actually from Japan or from China.

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@capsat knows much about chinese Land Cruiser. May be he can shed some light.

its best to lock it up. makes for easy management

Reopening the thread on OP's request. Please keep the discussion civilized, it's a humble request.