Christopher2110 Posted February 18, 2021 Report Share Posted February 18, 2021 Gave the Boxster a quick wash yesterday and noticed some bubbles under the paint on the front wing. Almost like the air bubbles you get when applying vinyl. They are quite noticeable and then move around when pressure is applied with your finger. I can't see any signs of rust anywhere on the wing and I cannot see any other bubbles anywhere else on the car, anyone experienced anything similar or have any ideas? Link to comment Share on other sites More sharing options...
T11Mike Posted February 18, 2021 Report Share Posted February 18, 2021 Could be rust blisters has it been accident repaired at some time? Link to comment Share on other sites More sharing options...
Lennym1984 Posted February 18, 2021 Report Share Posted February 18, 2021 They look like moisture blisters to me. At a guess that wing has been resprayed (badly I'm afraid). The only remedy is to strip and repaint Link to comment Share on other sites More sharing options...
Christopher2110 Posted February 18, 2021 Author Report Share Posted February 18, 2021 10 minutes ago, T11Mike said: Could be rust blisters has it been accident repaired at some time? No sign of any accident damage, no orange peel or over spray anywhere and all the paint matches so unsure but wouldn't rule it out! 4 minutes ago, Lennym1984 said: They look like moisture blisters to me. At a guess that wing has been resprayed (badly I'm afraid). The only remedy is to strip and repaint Do we think it's a complete strip and repaint, or something a decent smart repair could resolve? Link to comment Share on other sites More sharing options...
T11Mike Posted February 18, 2021 Report Share Posted February 18, 2021 Can you see behind the panel where the bubbles are? Link to comment Share on other sites More sharing options...
Christopher2110 Posted February 18, 2021 Author Report Share Posted February 18, 2021 @T11Mike Assume I could if i got the wheel etc off, what would I be looking for? Just any signs of rust? Link to comment Share on other sites More sharing options...
T11Mike Posted February 18, 2021 Report Share Posted February 18, 2021 I would look for rust yes but im not a paint expert Link to comment Share on other sites More sharing options...
Menoporsche Posted February 18, 2021 Report Share Posted February 18, 2021 Never seen that before on here. So I'm guessing a bad respray. How long have you had the car, do you know when they appeared? You could try a smart repair but I'd fear that more would appear later. Link to comment Share on other sites More sharing options...
map Posted February 18, 2021 Report Share Posted February 18, 2021 @T11Mike - do you use a car cover? Link to comment Share on other sites More sharing options...
Lennym1984 Posted February 18, 2021 Report Share Posted February 18, 2021 1 hour ago, Christopher2110 said: No sign of any accident damage, no orange peel or over spray anywhere and all the paint matches so unsure but wouldn't rule it out! Do we think it's a complete strip and repaint, or something a decent smart repair could resolve? It'll be a complete strip and respray. Most decent bodyshops will want to take that back to bare metal to avoid it recurring. It's possible but fairly unlikely it has happened to original paint. A front end respray isn't unusual and doesn't always point to an accident (the front end of my Cayman was done when it was purchased used from an OPC) Link to comment Share on other sites More sharing options...
T11Mike Posted February 18, 2021 Report Share Posted February 18, 2021 Seen it once on an accident repair where the bare metal areas of the panel hadn't been treated properly so the rust got to work. Link to comment Share on other sites More sharing options...
Lennym1984 Posted February 18, 2021 Report Share Posted February 18, 2021 1 minute ago, T11Mike said: Seen it once on an accident repair where the bare metal areas of the panel hadn't been treated properly so the rust got to work. I think it is more likely to be microblisters (Google it) than rust. Either way it'll need repairing but as the weather improves, you may find that they shrink somewhat Link to comment Share on other sites More sharing options...
Christopher2110 Posted February 18, 2021 Author Report Share Posted February 18, 2021 Thanks guys. Best start getting some quotes together... Link to comment Share on other sites More sharing options...
jonogt6 Posted February 18, 2021 Report Share Posted February 18, 2021 2 hours ago, Christopher2110 said: Gave the Boxster a quick wash yesterday and noticed some bubbles under the paint on the front wing. Almost like the air bubbles you get when applying vinyl. They are quite noticeable and then move around when pressure is applied with your finger. I can't see any signs of rust anywhere on the wing and I cannot see any other bubbles anywhere else on the car, anyone experienced anything similar or have any ideas? I get a similar thing on one if my wing mirrors in the winter but the blisters are only tiny in comparison. I'm assuming its been repainted at some stage.Definitely not rust on my mirror as its plastic, so yours may not be either. They disappear once its warmed up but i fear yours are too pronounced for that to happen. Link to comment Share on other sites More sharing options...
Boxob Posted February 18, 2021 Report Share Posted February 18, 2021 2 hours ago, Lennym1984 said: They look like moisture blisters to me. At a guess that wing has been resprayed (badly I'm afraid). The only remedy is to strip and repaint I agree. Had this on an Audi and that was the diagnosis. I didn't follow up on the free respray which was offered but oddly the rash disappeared! Link to comment Share on other sites More sharing options...
Christopher2110 Posted February 18, 2021 Author Report Share Posted February 18, 2021 I wonder if they can be encouraged to disappear with some heat then? Maybe a hair dryer Link to comment Share on other sites More sharing options...
edc Posted February 18, 2021 Report Share Posted February 18, 2021 Unless your paint is porous I doubt it. Link to comment Share on other sites More sharing options...
BBB Posted February 18, 2021 Report Share Posted February 18, 2021 23 minutes ago, Christopher2110 said: I wonder if they can be encouraged to disappear with some heat then? Maybe a hair dryer You have nothing to lose by trying. It’s strange if you can move the blisters around with your finger as it implies a flexible film on the surface and either air or water trapped underneath. Not had any paint treatments done? Link to comment Share on other sites More sharing options...
mvw Posted February 18, 2021 Report Share Posted February 18, 2021 I recently found similar on my car, never seen it before and suspect the current weather made it show up. I'd booked mine to have some paint repair to the o/s front wheel arch where I'd grounded it avoiding a tractor (another story). Then when the paint guy came to pick it up I showed him (it's on the rear o/s quarter). He could immediately see it had been badly re-painted, so I'm having him do that too. It was one of only two panels I thought hadn't already had paint lol. I've had the car 9 years and it had never been visible before Link to comment Share on other sites More sharing options...
the baron Posted February 18, 2021 Report Share Posted February 18, 2021 5 hours ago, map said: @T11Mike - do you use a car cover? You beat me to it. Link to comment Share on other sites More sharing options...
Christopher2110 Posted February 18, 2021 Author Report Share Posted February 18, 2021 @T11Mike @the baron yes, normally! This is the first winter I haven’t... Link to comment Share on other sites More sharing options...
dpg123 Posted February 18, 2021 Report Share Posted February 18, 2021 Just wondering - I might have missed this earlier, there's definitely not a PPF film on top of the paint? Seems odd to have such big bubbles but not burst the paint. I'd have expected the paint to have popped already with that... I did read this though, pointing to bad prep (although this should have happened sooner/immediately after respray): Larger car paint bubbles Generally speaking, if you have anything from a pencil eraser to a quarter or even a half dollar size bubble, your looking at bigger problems. Most of the time it is due to the body work, poor paint prep, or rust. There are always exceptions. Let’s take a look at some issues: Rust bubbles under paint When we talk about rust under the paint it can be caused by a problem when the metal was exposed prior to painting, or for old paint and OEM paint the most likely source is from the back side. If there was a scratch or chip down to the metal it may have started to rust. But a bubble rusting from the exposed area or from underneath is fairly evident and self explanatory. We are more concerned of a car paint bubble as it pertains to a refinish process. A prime example is a vehicle that was in our shop and the painter was getting ready to put primer on a fender he had stripped down to the metal. But he decided to leave it till after lunch. While he was gone, another person had come over to the car and for some reason leaned up against the fender with his hand on the bare metal. When the painter came back he went ahead and primed the fender. Continued to refinish the area. A month later there were little bubbles on the fender in the shape of a hand print. The body can give off a bit of salt in your sweat as well as oils from your skin. That is why it is so important to clean the bare metal surface good and prime it right away. There is proper priming procedures also which we will discuss later Link to comment Share on other sites More sharing options...
Andy Mac Posted February 18, 2021 Report Share Posted February 18, 2021 Hi @Christopher2110 I asked some friends in the trade - they said likely to be moisture in the airline during paint. Hope you can re prep / paint with as little hassle as poss. Link to comment Share on other sites More sharing options...
bally4563 Posted February 19, 2021 Report Share Posted February 19, 2021 What you can do in the short term , is to pop them with a sharp pin, I had same with an Alfa once, helped disguise the fact until I got it sorted. Link to comment Share on other sites More sharing options...
Christopher2110 Posted February 19, 2021 Author Report Share Posted February 19, 2021 14 hours ago, dpg123 said: Just wondering - I might have missed this earlier, there's definitely not a PPF film on top of the paint? Seems odd to have such big bubbles but not burst the paint. I'd have expected the paint to have popped already with that... I did read this though, pointing to bad prep (although this should have happened sooner/immediately after respray): Larger car paint bubbles Generally speaking, if you have anything from a pencil eraser to a quarter or even a half dollar size bubble, your looking at bigger problems. Most of the time it is due to the body work, poor paint prep, or rust. There are always exceptions. Let’s take a look at some issues: Rust bubbles under paint When we talk about rust under the paint it can be caused by a problem when the metal was exposed prior to painting, or for old paint and OEM paint the most likely source is from the back side. If there was a scratch or chip down to the metal it may have started to rust. But a bubble rusting from the exposed area or from underneath is fairly evident and self explanatory. We are more concerned of a car paint bubble as it pertains to a refinish process. A prime example is a vehicle that was in our shop and the painter was getting ready to put primer on a fender he had stripped down to the metal. But he decided to leave it till after lunch. While he was gone, another person had come over to the car and for some reason leaned up against the fender with his hand on the bare metal. When the painter came back he went ahead and primed the fender. Continued to refinish the area. A month later there were little bubbles on the fender in the shape of a hand print. The body can give off a bit of salt in your sweat as well as oils from your skin. That is why it is so important to clean the bare metal surface good and prime it right away. There is proper priming procedures also which we will discuss later No PPF unfortunately! Thanks for the info 12 hours ago, Andy Mac said: Hi @Christopher2110 I asked some friends in the trade - they said likely to be moisture in the airline during paint. Hope you can re prep / paint with as little hassle as poss. Thanks @Andy Mac I wonder if that was moisture in the airline when the original paint was applied at the factory 😔 @bally4563 I was very tempted to pop them straight away, but I was unsure whether that would just open up a can of worms and let more air/ moisture in Link to comment Share on other sites More sharing options...
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