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Old 13-05-2017, 08:53 AM   #11
chongo
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It seems now that you have mentioned it, that it's located on the rear bumper edge and it looks like your bumper has had a respray at some point, because just to the left of the mark there are tiny dust marks under the clear. Now you could try and get a sponge foam hand pad and with some finishing polish and with only a tiny bit of polish begin to work lightly around the edge of the damage area. Make sure your hand pad has polish on it so your not touching the paint with no polish on it, and see if that makes a difference.

See plastic bumpers tend to heat up a lot faster than other parts of the cars body especially on the edge. If not pop down to your local body shop and they will probably tell you you need a full rear bumper respray or look up a local smart repair person
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Old 13-05-2017, 11:50 AM   #12
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Thanks chongo, booked in for a bumper respray on Wednesday. For future reference do you think the damage is due to a repair in the past or to much heat? I used a da polisher on speed 1 to spread then speed 4 to work.
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Old 13-05-2017, 12:56 PM   #13
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Quote:
Originally Posted by antlocke View Post
Thanks chongo, booked in for a bumper respray on Wednesday. For future reference do you think the damage is due to a repair in the past or to much heat? I used a da polisher on speed 1 to spread then speed 4 to work.
It's hard to say, but you only used a back pad which has little to no cut at all (depending on what paint it is) just be very careful when polishing plastic bumpers with any machine speed and pressure are important
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Old 13-05-2017, 08:52 PM   #14
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Quote:
Originally Posted by chongo View Post
It's hard to say, but you only used a back pad which has little to no cut at all (depending on what paint it is) just be very careful when polishing plastic bumpers with any machine speed and pressure are important
Thanks chongo
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Old 14-05-2017, 03:57 AM   #15
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To me it looks like it's had a smart repair in the past and you've polished right through it.

The shiny bit around the touch up is original lacquer, the dull ring around it is basecoat and after that's is the new lacquer.
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Old 14-05-2017, 06:51 AM   #16
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Congrats OP you have found out first hand what it looks like when you polish through the lacquer.

That panel has defo been repaired/painted before no question about it....there are pin holes/fish-eys in the surface next to the burn through.

Last edited by nick_mcuk; 14-05-2017 at 06:54 AM.
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Old 14-05-2017, 09:26 AM   #17
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Originally Posted by nick_mcuk View Post
Congrats OP you have found out first hand what it looks like when you polish through the lacquer.

That panel has defo been repaired/painted before no question about it....there are pin holes/fish-eys in the surface next to the burn through.
You can definitely see the repair job, but he must of put some pressure and time polishing that spot to burn through the clear on a black pad.

He must have super soft paint around that area to do that.
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Old 14-05-2017, 04:22 PM   #18
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The pad has pulled some of the not fully cured touch up paint, gets on pad and it's like polishing with grit on your pad, takes seconds to remove clear.
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Old 14-05-2017, 05:32 PM   #19
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Polishing soft clear coat on a corner is always risky, a lesson learnt by the OP.
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Old 14-05-2017, 06:03 PM   #20
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Quote:
Originally Posted by chongo View Post
You can definitely see the repair job, but he must of put some pressure and time polishing that spot to burn through the clear on a black pad.

He must have super soft paint around that area to do that.
Not 100% true if those defects are anything to go by the person that did that smart repair has clearly "ground the balls" out of that area to make it look better. But yeah the OP must have been there for a while LOL

As said if the touchup paint gets pulled into the pad it makes it a fair bit more abrasive.
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