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[tunnie]

I have what appears to be wet concrete drops on the 3.2, on the front wing it looks like something has dripped on.

It's a bugger to remove with normal soap water, with a finger nail it kind of comes off but still bloody hard work.

What's best to use? White Sprit or even petrol?  - Concerned these would be too abrasive?

[Mr Gav]

Concrete is very abrasive and also burns due to the high cement content.
How long has it been there?
 I would use lots of cold water if it`s only today and carefully try and remove with a sponge or the edge of a plastic scraper.

The only chemical that is designed for concrete splashes is brick acid, not the sort of thing you would put on your car.

It may need t cutting afterwards depending how bad it is.

[tunnie]

I think it's concreate, it appeared I *think* after I parked in an underground car park.

It's been on there for a several weeks now, since before Christmas 

[Mr Gav]

I think it's concreate, it appeared I *think* after I parked in an underground car park.

It's been on there for a several weeks now, since before Christmas 

Shame  you don`t  have proof, you could have got them to pay for it 

Somebody else might have some better ideas but I would maybe try some dilute patio cleaner (1 part cleaner to 4 parts water) or wonder wheels, it`s the same stuff, and agitate it with a brush. Have a hose pipe to hand and rinse thoroughly every time as it is Hydrochloric acid and you don`t want it on any bare metal.

[Marks DTM Calib]

The only chemical that is designed for concrete splashes is brick acid, not the sort of thing you would put on your car.

Which is actually pretty much the same stuff standard alloy wheel cleaner is 

[Mr Gav]

The only chemical that is designed for concrete splashes is brick acid, not the sort of thing you would put on your car.

Which is actually pretty much the same stuff standard alloy wheel cleaner is 

That`s why I use Very Cherry 

Think I mentioned wonder wheels above 

[TD]

Looks like pigeon poo to me....which is possible in an underground carpark...its probably warmer than being outside at the moment so its possible one or two of them were lurking amongst the pipes/cables overhead.

Unless you parked in a carpark still being constructed.....I don't see where concrete splashes could have come from   

Bird poo is just as bad.....unless washed of quickly...it will mark/stain paintwork.

[robson]

My partner had similar pretty sure it was bird poo washed off but very tough it took the lacquer off.

[YZ250]

I think it's concreate, it appeared I *think* after I parked in an underground car park.

It's been on there for a several weeks now, since before Christmas 

In an underground car park I would imagine it's pigeons in the rafters. Don't know what they eat lately but their shite is a devil of a job to shift and leaves a faded mark on the paint if left too long. I soak a cloth in hot water and stick it over the shite to soften it up before attempting to fully remove. Hopefully it's just that.

[tunnie]

Did not look like pigeon poop, but could well be.

Good shout on hot cloth  - Will try that 

[Doctor Gollum]

Pop a new wing on. Be quicker

Incidentally have one here in a suitable shade of exceedingly rare silver

[Bigron]

When I first read your post I thought that, going on the size of the patch, it could be seagull sh it? Are you near the sea? Same treatment as YZ250 suggested, long soak first and gentle scraping with a plastic scraper.
Hope it works for you.

Ron.

[Tony H]

As had been said soak with hot soapy water not detergent after a while gently rinse with clean water and wipe off inspect for damage to the laquer if not to bad carfully polish with t cut. Worst case sinario is it may be a repaint if the base coat has been affected or re laquer of it is only laquer damage

[YZ250]

Did not look like pigeon poop, but could well be.

Good shout on hot cloth  - Will try that 

When I'm near the coast, I notice that the bird shite has sand in it where the gulls have scavenged on the beach. It looks gritty and needs soaking to loosen it up. It depends on where the culprit had been dining as to what it fired at your car. 

[TheBoy]

Front of mine got absolutely mullered when parked under a tree in some naff Ipswich hotel last month.

The rain has washed off the majority now...  ...but some still remains

[YZ250]

When I had the convertible I was convinced that one day I would be shat on but thankfully it never happened. 

[TheBoy]

When I had the convertible I was convinced that one day I would be shat on but thankfully it never happened. 

Mrs TB once opened sunroof whilst reversing off driveway...   ...what a shot!

She wasn't happy, mind...

[YZ250]

When I had the convertible I was convinced that one day I would be shat on but thankfully it never happened. 

Mrs TB once opened sunroof whilst reversing off driveway...   ...what a shot!

She wasn't happy, mind...

 

They definitely circle around up there and pick a target. Must be like a game to them. 

[TheBoy]

When I had the convertible I was convinced that one day I would be shat on but thankfully it never happened. 

Mrs TB once opened sunroof whilst reversing off driveway...   ...what a shot!

She wasn't happy, mind...

 

They definitely circle around up there and pick a target. Must be like a game to them. 

She felt like a WWII Dresden resident once in Bowness.  Clearly she attracts it .  Naturally, I didn't laugh. Much.

[johnnydog]

I think it's concreate, it appeared I *think* after I parked in an underground car park.

You say you found it after you parked in an underground car park?
Most car parks are built of concrete, and I think what you have on your wing is the result of water dripping from cracks in the concrete. The water drips are likely to have a small lime content in them, and the marks left are sometimes refered to as 'lime weeping' or 'lime leeching'. Going back to my schooldays, this is how stalactites are formed over many years. If you have ever gone into underground caves, you can often see long white 'spikes' called stalactites hanging from the top of the cave where water has dripped which make a 'stalactite' on the ground forming where the water drips. The two eventually meet.
If this what you have on your wing, which I think is a strong possibility, then it needs to be removed asap, but from the length of time you say it has been there, I would say it will have had the same effect as leaving bird shite on your paintwork, and will have eaten into the surface of the paint and will be a swine to remove.
What to use, I wouldn't like to say.
However, if the mark left is similar to that from bird shite, there is a technique where they can be removed by the careful use of a hot air gun which in effect softens / melts the lacquer slightly causing it to 'run' filling the affected area laquer. No amount of cutting will do it. There are YouTube clips that show how it's done.
You need to be a braver man than me though!

[Mr Gav]

If it is limescale residue you could try some limescale remover, I`ve used Limelite before on efflorescence with reasonable results on some internal polished blocks where brick acid couldn`t be used.

You can get limelite from supermarkets, green spray bottle.

[STEMO]

Over the years I've had countless birds shit on my cars, from sparrows to albatross. I've sometimes cleaned it off straight away, and some times left it for weeks.
Not once has it damaged the paintwork.

[minifreek]

Could just use some bird shit remover you can buy from Halfords and the like....

I also have never had any problems with leaving bird shit on my cars paintwork for weeks and its never marked the paintwork....

[tunnie]

I think it's concreate, it appeared I *think* after I parked in an underground car park.

You say you found it after you parked in an underground car park?
Most car parks are built of concrete, and I think what you have on your wing is the result of water dripping from cracks in the concrete. The water drips are likely to have a small lime content in them, and the marks left are sometimes refered to as 'lime weeping' or 'lime leeching'. Going back to my schooldays, this is how stalactites are formed over many years. If you have ever gone into underground caves, you can often see long white 'spikes' called stalactites hanging from the top of the cave where water has dripped which make a 'stalactite' on the ground forming where the water drips. The two eventually meet.
If this what you have on your wing, which I think is a strong possibility, then it needs to be removed asap, but from the length of time you say it has been there, I would say it will have had the same effect as leaving bird shite on your paintwork, and will have eaten into the surface of the paint and will be a swine to remove.
What to use, I wouldn't like to say.
However, if the mark left is similar to that from bird shite, there is a technique where they can be removed by the careful use of a hot air gun which in effect softens / melts the lacquer slightly causing it to 'run' filling the affected area laquer. No amount of cutting will do it. There are YouTube clips that show how it's done.
You need to be a braver man than me though!

Thanks. Can only think it was then, might have been another time though. 

Over the years I've had countless birds shit on my cars, from sparrows to albatross. I've sometimes cleaned it off straight away, and some times left it for weeks.
Not once has it damaged the paintwork.

Same, never had any problems. Reaching point of can't be bothered with the 3.2 though, rarely wash it. The multi-ram is broken, its hugely over-due on it's cambelt and now it's got some crap on the body work I can't remove.

Might try the hot towel trick though.

[GastronomicKleptomaniac]

Id try clay (Meguiars kit in Halfords is decent, Bilt Hamber Autoclay from the web is better). Thats speaking as a detailer