rust!

[simon varley]

Eight month old Mondeo Trend. Rust and blistering on stonechip on the bonnet. It's a lease car so I'm not overly bothered, but if I'd bought this I'd be fuming

[Twinkles]

It's a stonechip mate. Of course it's going to rust? Why didn't you put a dab of clear nail polish on it when it first happened? Then it wouldn't be rusty.

[cobrin]

Nearly 8yr old Mondeo here with more than 20 stone chips on the bonnet, all touched up, none with rust.

[allanv6gt]

The panel is dented. Must have been a big stone.

[Bossxr8]

Looks like it copped a decent stone. Of course bare metal will rust.

[Pepscobra]

I got sunburnt on the weekend coz I didn't apply suncream.
I blame Ford.

[simon varley]

oh well, I guess my expectations of what is acceptable after eight months on a car that is supposed to have a 10 year anti-perforation warranty is different to others here - never mind.

[fiestaz]

Any car that gets a whopper of a stone chip that takes away all the paint and goes back to baremetal will rust in that spot as it's no longer protected. If it gets touched up quick enough it won't be a problem. Without the paint on the metal, it's no longer protected in that spot... pretty basic stuff.

[.:4:.]

On the once or twice I had copped any major chips or scrapes on coloured cars back in the day, I'd straight away rube them down with wax and grease remover, fill the chip with the best match of crayon to the colour I could get, then wax over the top. It was a bit ugly and only a temp fix, but I never had rust issues and the fix was only obvious because of the dent or if you knew it was there. On fridge white work cars I use white out. Ugly again, but it stops the rust. Work only fix cars if they are undriveable, and my bosses definition of that is extreme, one guy has been driving a van for over a year where the top of the drivers door is bent 2 inches out from the car. He gets wet when it rains, apparently that's Mitsubishis version of active fatigue management....

[NZ XR6]

Originally Posted by fiestaz

Any car that gets a whopper of a stone chip that takes away all the paint and goes back to baremetal will rust in that spot as it's no longer protected. If it gets touched up quick enough it won't be a problem. Without the paint on the metal, it's no longer protected in that spot... pretty basic stuff.

It's not quite that simple. Car anti-corrosion and paint systems should prevent rust forming in this case. I haven't seen a stone chip rust like that for many years. Not impressed, Ford.

Sent from somewhere using Tapatalk

[Pepscobra]

Originally Posted by NZ XR6

It's not quite that simple. Car anti-corrosion and paint systems should prevent rust forming in this case. I haven't seen a stone chip rust like that for many years. Not impressed, Ford.

Sent from somewhere using Tapatalk

The paint coating is an integral/important part of the anti-corrosion system.
The paint coating has been compromised in this case and the raw metal has been exposed. All stone chips where it has gone down to the metal should be touched up ASAP.
Grab two watermelons, poke a hole in one, leave both on shelf and see which one starts to rot first.
I kinda thought this was common knowledge.

[Trump]

Originally Posted by simon varley

oh well, I guess my expectations of what is acceptable after eight months on a car that is supposed to have a 10 year anti-perforation warranty is different to others here - never mind.

I'm not sure who told you that the panel perforation warranty was 10 years, it is five years:

https://www.ford.com.au/content/dam/...leWarranty.pdf

[NZ XR6]

Originally Posted by Pepscobra

The paint coating is an integral/important part of the anti-corrosion system.
The paint coating has been compromised in this case and the raw metal has been exposed. All stone chips where it has gone down to the metal should be touched up ASAP.
Grab two watermelons, poke a hole in one, leave both on shelf and see which one starts to rot first.
I kinda thought this was common knowledge.

"Raw" metal? What's that?

It looks like a pretty decent stone chip. Where the paint and anti-corrosion coating have been removed, yes, you will see surface rust if it's not touched up. But there shouldn't be rust spreading from the bare metal under the paint like that. It does make you wonder how well the e-coat was applied.

There's been a few posts regarding quality issues on the MD. I might just look for a late model MC when it's time to change the MB.

[Fed]

It looks like bog on my computer.

[uniacidz]

And now because it wasn't acted on immediately by the OP it is now going to be harder to fix

Didnt they come out with touch up pen? Only costs like $20 if it didnt anyway

[blackf6]

Originally Posted by NZ XR6

"Raw" metal? What's that?

It looks like a pretty decent stone chip. Where the paint and anti-corrosion coating have been removed, yes, you will see surface rust if it's not touched up. But there shouldn't be rust spreading from the bare metal under the paint like that. It does make you wonder how well the e-coat was applied.

There's been a few posts regarding quality issues on the MD. I might just look for a late model MC when it's time to change the MB.

Water gets under the paint, through the chip. Then spider webs from there. Happens to any car with stone chips. Except on plastic bumpers.

[NZ XR6]

Originally Posted by blackf6

Water gets under the paint, through the chip. Then spider webs from there. Happens to any car with stone chips. Except on plastic bumpers.

The e-coat (primer / base coat) wasn't applied properly. I haven't seen anything like that since we stopped assembling cars in NZ about 20 years ago.

[rondeo]

My 1974 Dodge ute nearly broke in half with rust, a cop asked me if I had any reason for driving the vehicle with rust in it (which I didn't). After it was stickered I sold it to a wrecker.

It had a catch can for oil and I put the oil back in the engine now and then: call it eco mode.

On my MC bonnet chips I used some matching paint which is now a solid lump. The car has had zero mechanical issues in 160000km. Just brakes, once, and buzzing vacuum solenoid which I replaced as a precaution. I like the MC but I wouldn't mind going back.

If you live near the sea, the rust might be worse, but the life . . .

[simon varley]

spoke to the corrosion supervisor at yypg this week and he confirmed that rust like that is not normal. Mondeo hoods are Zn coated. His suggestion is that the Zn coating may have been buffed off in that area for some reason

[simon varley]

okay, so that didn't end up too well, but I'm not sure a dab of clear nail varnish would really have helped much. The paint literally peeled off under pressure wash

[.:4:.]

Originally Posted by simon varley

okay, so that didn't end up too well, but I'm not sure a dab of clear nail varnish would really have helped much. The paint literally peeled off under pressure wash

image

In general I always just use a hose because any lifting paint, or even paint chips can be accelerated with pressure. I saw it happen twice when I was younger. Once to a ute, and in the same session to the bobcat beside it. It looks like you're in a very annoying situation.

[Mondaveo]

Originally Posted by simon varley

The paint literally peeled off under pressure wash

image

It looks like one layer of coloured paint. Shouldn't there be a primer coat underneath it?