![]() 10/14/2018 at 09:08 • Filed to: None | ![]() | ![]() |
Sorry to bug you from your lunch but...
...and sorry for the horrible pic, I couldn’t get the focus right, it was quite cloudy. Was working on a friend’s car to remove some weird droppings (bird? sewage pipe? Not entirely sure)
This remains after a bug/tar spray, claying, hand polishing for like almost an hour. Couldn’t break out the DA because it was like 6 degrees out, but does this look like it needs wet sanding? Stain is smooth to touch.
I just put some sealant on it for now and told my friend I’ll work on it again after winter.
![]() 10/14/2018 at 09:25 |
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I can’t see anything in the photo, but if it was bird shit or something like it the paint may be permanently etched. Try some rubbing compound (synthetic, no grit. 3m Perfect it comes in small quantities at parts stores) do that, polish after and it’s what you can do.
for a better photo, block the reflection with something dark.
![]() 10/14/2018 at 09:27 |
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Hi mate.
Where are these on the car ?
Do they like acid or organic based etching?
You say smooth, so if you run your finger nail over at a 45% angle it doesn’t catch, offer resistance or feel like a slight undulation or rippling ?
At best it may be ghosting or clouding, at worst, deep etching.
The former just needs a little more effort with the polish concentrating on the sto p then working in to blend it to mitigate dull spots.
Rather than going straight to the wet’n’dry, dry a compound polish first and then refine as black and dark colours are prone to holograms before then hitting it with wet’n’dry.
Remember when polishing by hand to use straight lines up and down, then left and right, repeating as necessary.
![]() 10/14/2018 at 09:58 |
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Where are these on the car?
Hood/Bonnet.
Do they like acid or organic based etching?
I can’t tell, but majority of it came out when I used this. The stuff was on the hood for more than 2 weeks, when I first pointed it out to him back then, he took it to a car wash immediately. Quite a busy guy.
You say smooth, so if you run your finger nail over at a 45% angle it doesn’t catch, offer resistance or feel like a slight undulation or rippling?
No catching at all.
Rather than going straight to the wet’n’dry, dry a compound polish first and then refine as black and dark colours are prone to holograms before then hitting it with wet’n’dry.
Remember when polishing by hand to use straight lines up and down, then left and right, repeating as necessary.
That’s what I did, and this was what remained, that’s why I’m suspecting it’s etching. I went from clay to Ultimate Compound.
![]() 10/14/2018 at 09:59 |
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That’s what I did, my usual process of double-wash, clay and stepping up to a rubbing compound (Meguiar’s Ultimate Compound) . I stopped there, since my other more aggressive compounds are DA only.
![]() 10/14/2018 at 10:06 |
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Ye’, definite etching. Break out the DA and some compound or hit it with a 4000 grit wet’n’dry (straight lines) , then compound and refine with the DA. .