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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Wash, Wax, Detailing and Cosmetic protection/repairs > How do you clean/remove dried bird droppings?



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      10-03-2010, 09:58 PM   #1
BRAISKI
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Exclamation How do you clean/remove dried bird droppings?

How do you guys do?

For me I have a spry bottle filled with water with car wash soap. I am thinking I should put it in the trunk lol. I used to use paper towel but I found out the hard way with my old car :/ now I use a sponge.
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      10-04-2010, 05:02 AM   #2
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Do not scrub hardened/dried excrement residue, birds use gravel to help digest their food so grit and sand are some of the major components, which can cause scratching as it is very abrasive and will scratch the paint surface. Once it softened (re-liquefied) it enables their removal with less likelihood of damage to the paint surface Do not use on a hot paint surface (soon after driving) as this will cause streaking

Use a solution of Optimum no-rinse (ONR) diluted 1:20 / distilled water in a fine mist spray bottle) and allow to dwell time as this will soften debris and allow it to be removed with a mesh covered bug sponge
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      10-04-2010, 08:56 AM   #3
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Quote:
Originally Posted by TOGWT View Post
Do not scrub hardened/dried excrement residue, birds use gravel to help digest their food so grit and sand are some of the major components, which can cause scratching as it is very abrasive and will scratch the paint surface. Once it softened (re-liquefied) it enables their removal with less likelihood of damage to the paint surface Do not use on a hot paint surface (soon after driving) as this will cause streaking

Use a solution of Optimum no-rinse (ONR) diluted 1:20 / distilled water in a fine mist spray bottle) and allow to dwell time as this will soften debris and allow it to be removed with a mesh covered bug sponge
Actually the mesh covered bug sponge will mar the paint as well. I would not use that. Agree with the ONR to soften the debris. I would rinse away the spot first with water during a wash then a sponge as normal.
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      10-04-2010, 12:56 PM   #4
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Quote:
Originally Posted by jeffvb9 View Post
Actually the mesh covered bug sponge will mar the paint as well. I would not use that. Agree with the ONR to soften the debris. I would rinse away the spot first with water during a wash then a sponge as normal.
I actually just bought the mesh covered sponge yesterday...
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      10-04-2010, 01:26 PM   #5
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use a bug and tar remover and let it soak until its soft again. use a mf towel to wipe of the droppings and apply a qd after the spot is cleaned
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      10-04-2010, 09:12 PM   #6
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i scrubbed bird crap off once. had to go somewhere in a hurry, just grabbed a few sheets of wet bounty and started wiping..it swirled like crazy and never did come off completely. learnt my lesson the hard way
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      10-04-2010, 10:10 PM   #7
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Blast the crap with a Pressure wash. Run it through one of those touchless car washes.
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      10-05-2010, 10:07 AM   #8
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[Actually the mesh covered bug sponge will mar the paint as well.]

If that were true do you really think I would advise doing it?
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      10-05-2010, 10:40 AM   #9
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I keep a bottle of quick detailer in the trunk and a couple mf towels. Let it soak for a minute then blast it off with more quick detailer and wipe dry.
I left crap on my car for a couple days in the summer and it left a permanent stain so pardon the pun but *get that shit off*
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      10-05-2010, 11:39 AM   #10
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pour some water on it and then just wipe off
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      10-06-2010, 02:06 PM   #11
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The bug stuff + MF towel works perfect for me.

And my car is constantly under my neighboor's huge trees.
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      10-06-2010, 03:19 PM   #12
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There are lots of ways but the point to all of them is to get everything nice and wet and "pinch" the proppings off using some sort of cloth or paper that won't harm your paint.

Here's what I do.

I have a bottle of soapy water in my trunk and a roll of those 1/3 sheet paper towels.

I wet the paper towel thoroughly. I also wet the stain.

I fold the paper towel a few times and place it over the stain while I run a short errand (going into the grocery store, etc.)

When I come out I know that the stain is all soft and "pinch it up" with the towel. I then turn the towel over (rewetting if necessary) and wipe off anything that remains.

When I get home I examine the area and wax/quick detail as required.

I've never had a scratch yet as the very wet towel won't scratch and "pinching" the stain will contain any sand to the area and won't let it scratch other parts of the paint.
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      10-07-2010, 12:17 AM   #13
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i cry
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      10-10-2010, 07:53 PM   #14
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have to get it off right away. bug and tar is good to use
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      10-10-2010, 09:07 PM   #15
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Quote:
Originally Posted by josh06lau View Post
have to get it off right away. bug and tar is good to use
I try to avoid bug and tar because it seems aggressive, i've been told it takes off wax. So i norm go for some detail spray or waterless wash.
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      10-13-2010, 11:21 PM   #16
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I'm not a professional detailer but here's what I do. It's worked well for me.

- I wet the dropping with lots of water.
- I wet a portion of a 100% cotton towel.
- I blot the wet portion of the towel over the wet dropping while applying NO pressure except the weight of a small portion of the wet towel.
- If blotting doesn't work, I drag a clean portion of the towel over the dropping while applying NO pressure except the weight of a small portion of the wet towel.
- I rotate the towel and repeat the process until the dropping is removed.
- I pour water over the cleaned area.

I've never scratched my black sapphire paint using this technique.

It seems like the thing to avoid is the bad combination of abrasive particles (contained in droppings) and pressure. What do you professional detailers think?
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      10-15-2010, 01:24 AM   #17
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Quote:
Originally Posted by dday View Post
I try to avoid bug and tar because it seems aggressive, i've been told it takes off wax. So i norm go for some detail spray or waterless wash.
you are right. bug and tar remover takes wax off immediately. I use a quick detailer solution, hold a microfiber rag underneath the dropping for the run downs, completely soak the dropping until its almost washed it self away then spray more quick detailer on the rag and very carefully wipe up the remaining. be very careful not to grind in the dropping into the paint. people need to know that in areas where the paint gets extremely hot and softens you only have a couple hours to remove the dropping before the acid in the actual dropping stains the top layer of clear coat. Our famous friend Paul Dalton has a 24 hour service that if you get a bird dropping on your exotic car he will come out in the middle of the night to remove it. wonder how much that costs...
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