gillap Posted July 28, 2017 Share Posted July 28, 2017 Does anyone have a trick to remove a yellow stain left by gecko droppings on my car. The yellow residue seems to penetrate the paint... I've tried every kind of soap, petrol and lately a mild compound! Nothing seems to work. Meanwhile my brand new car has yellow stains! Link to comment Share on other sites More sharing options...
tonray Posted July 28, 2017 Share Posted July 28, 2017 Try white Vinegar straight from the bottle. It will remove any wax also so you will need to re-protect the area after it is clean. Link to comment Share on other sites More sharing options...
VocalNeal Posted July 28, 2017 Share Posted July 28, 2017 Toothpaste? Link to comment Share on other sites More sharing options...
JAS21 Posted July 28, 2017 Share Posted July 28, 2017 (edited) Park it in the sun ... Hope this doesn't change to a glass coating debate... However they just about wipe off my glass coating ☺... Soak the area with a wet tissue ...just leave it in place for a while... then becareful not to spread the yellow. The sun should bleach those yellow marks out with time... Stick some wax on it ... wipe the marks as soon as you notice them ....the yellow spreads easily when wet if fresh ...... Edited July 28, 2017 by JAS21 Link to comment Share on other sites More sharing options...
VocalNeal Posted July 28, 2017 Share Posted July 28, 2017 I have removed yellowing from white plastic using hydrogen peroxide. It only reacts with organics. Soak a cotton swab with it and wipe it on when in the sunshine. But to be 100% sure try a tiny drop first. As I said it works with white plastic but... Link to comment Share on other sites More sharing options...
sawadee1947 Posted July 28, 2017 Share Posted July 28, 2017 sand paper works Link to comment Share on other sites More sharing options...
wanderluster Posted July 28, 2017 Share Posted July 28, 2017 i dont know about the yellow stains now, but how did you remove the poo to start with. In my experience it is always best to clean when wet. If you do not notice till it is dry, then I use paper towels soaked in water. placing them on top of every piece for at least 5 min. this will soften things up and then can remove safely. Link to comment Share on other sites More sharing options...
swissbie Posted July 28, 2017 Share Posted July 28, 2017 Cana car creme, cleans excellently and waxes too. Link to comment Share on other sites More sharing options...
gillap Posted July 28, 2017 Author Share Posted July 28, 2017 Thanks guys...I will try the sun bit and the peroxide! I tried wax and compound scratch remover and that doesn't work. Like I said before it seems to penetrate the lacquer coating...powerful stuff! Link to comment Share on other sites More sharing options...
bazza73 Posted July 28, 2017 Share Posted July 28, 2017 3 hours ago, VocalNeal said: I have removed yellowing from white plastic using hydrogen peroxide. It only reacts with organics. Soak a cotton swab with it and wipe it on when in the sunshine. But to be 100% sure try a tiny drop first. As I said it works with white plastic but... Hydrogen peroxide reacts with a lot of inorganic chemicals, not just organics. It's used to remove sulphur dioxide in wines, for example. Paint is organic too. The OP would need to test very carefully in case he turns his whole car yellow with peroxide. Link to comment Share on other sites More sharing options...
tryasimight Posted July 28, 2017 Share Posted July 28, 2017 You sure it's geckos? Sounds more like bats piss. Big blotch? Very yellow and acidic and will eat into clear coat. Link to comment Share on other sites More sharing options...
Si Thea01 Posted July 28, 2017 Share Posted July 28, 2017 (edited) 7 hours ago, gillap said: Thanks guys...I will try the sun bit and the peroxide! I tried wax and compound scratch remover and that doesn't work. Like I said before it seems to penetrate the lacquer coating...powerful stuff! Not being able to see the problem, it sounds like these little mites' feces is acidic, probably from what ever they eat and this has eaten through the clear coat and into the actual duco. There is no way I'd use peroxide, just try a light cutting compound and if that doesn't work then I'd say you are stuck with the yellowing. The quick removal (within 4 hours) with the aid of water is the best bet in the first instance and also applies to bird and bat poo. Very acidic also. Edited July 28, 2017 by Si Thea01 Link to comment Share on other sites More sharing options...
GARYZX6R Posted July 29, 2017 Share Posted July 29, 2017 Watched a you tube vid of a guy trying to get caked on tree sap off. Tried vinegar, and various branded cleaners. The best item used was hand gel. Must have been the alcohol content. Worth a try. Link to comment Share on other sites More sharing options...
JAS21 Posted July 29, 2017 Share Posted July 29, 2017 17 hours ago, tryasimight said: You sure it's geckos? Sounds more like bats piss. Big blotch? Very yellow and acidic and will eat into clear coat. Small yellow dots are normally from gecko ... and they will bleach out, but obviously remove as much as you can by soaking with wet tissue ASAP ... try not to spread the yellow though ... I have experience clear coat attack, through the glass coating!! by 'something' more than likely from the rear of a bird ... deposited in Kanchanaburi and on for at least a day and a half including the drive back to BK on a very hot day ... I managed to remove nearly all the damage and it is at the top edge of the bonnet near the windscreen and basically doesn't show now. This was on a Honda and their clear coating is very soft, especially the Thailand applied one, so beware .... I got this from a detailer ....We've heard that acid from the bird droppings is the reason for the doo-doo perforations, but a study by UK car care experts Autoglym reveals that the excrement is only part of the problem. The real culprit is the sun, which expands and warms the paint on your vehicle. When the sun hits that bird poop, the poo hardens at the same time the paint expands. When the sun sets and the vehicle cools, the paint then contracts and forms itself around the hardened crap. Link to comment Share on other sites More sharing options...
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