Removing cement from a car's paint...
 

I have my offroader (Daihatsu SporTrak) parked at the side of my Mum's house and the neighbouring property has been demolished with a new building going up, as I use this car for offroading at Pay'n'Play sites etc it gets pretty muddy so I originally assumed these splats were mud remanents from under the body getting flicked up after it rained or something, but today I tried with the pressure hose and these splats weren't budging. I then tried to remove with my finger and it was gritty exactly like cement.

Looking at the pattern of the splats it's obvious it came from the building site next door, so I confronted the head honcho who was there with the architect, the architect took my side and acknowledged this was obviously from the building site but the top guy kept saying something about ahh this contains calcium and we don't use this on our site so it must of come from somewhere else.. Obviously total b.s. so I kicked off a bit..

Anyway.... is there a "safe" way to get this cement off and ensure lacquer doesn't come off with it and won't start to rust?

I've seen there's cement removing chemical sprays but I'm worried this is going to damage the paint? An alternative I've seen is using white vinegar to slowly dissolve the cement but it sounds a very long winded laborious process.

Ideally I'd want them to pay for a professional to sort it, but I'm not even sure who would do this work, Chips Away perhaps?

Any advice appreciated, cheers.

Spotted this stuff, not sure how good it is but they say it dissolves the cement fairly quickly

http://acleaningproduct.co.uk/produc...-cleaner-22oz/

Hope this helps

That looks promising thanks!

go find a local to you Detailing company
get them to have a look, provide a quote to sort it
present to the head honcho, supress the laughter as his face goes pale,
have a Pile of "ah But it was caused by you" replies ready when he gets his wind back from seeing the quote

Yeah this is what I feel like I should do. None of this is my fault and Im already spending my own time working out how to fix it so they should rightfully pay for it to be done properly. I doubt he'd be happy if someone had of sprayed cement on his BMW...

I believe vinegar will help dissolve the cement.

I heard that too but apparently its a long process.

His BMW and cement. There's your answer. Once he has got it off his car, he can tell you how to remove it from yours.

Problem is you use it on pay and play sites, it is therefore regarded as a banger by the uninformed and worthless.
I use my landrover for running locally, driving green lanes, and very very occasionally pay and play. In truth I have more time and money invested in that vehicle than I do the volvo. But to the uninitiated it's just a 27 year old banger, despite the new chassis, rebiult gearbox, steering box and a host of other replaced parts that vastly exceed it's market value.

As for the cement, be patient, rub jently with a wet sponge, ringing very frequently will eventually wear it away.
Fortunately my landrover is solid colour with no lacquer coat, when the scratches from trees and branches become to great I buy a couple litres of cellolouse paint , flat it off and blow it over. Most of the lanes are very overgrown and battle scars are inevitable so I have found this the easiest way of dealing with them. I also wax and polish it twice a year, which makes the mud and muck easier to wash off with the pressure washer.

Regards Paul.

Yeah my issue is, I think I know how to rectify it, but I'd rather spend my free time out on my motorbike than fixing a problem of someone else's making so if a detailer could fix it, I'd rather get them to do it and pass the bill onto the builders.

Not a bad product, used it a couple of years ago after the builders got a bit slapdash cleaning out their mixer and splashed a bit of cement on the back end of my Nissan Z300 (weekend toy) Looked a bloody mess but was soon sorted using the speedy clean. Needless to say I was deducting a fair chunk off their bill for the mishap..