Rusting alloy wheels

[Dragon]

How do you guys treat these alloy rusts?​

 

[television]

How do you guys treat these alloy rusts?​

Alloy corrodes not rust, there is little that can be done short of a re furb, and it all on an individual basis. A photo is worth more to comment on

 

[nick mercedes]

How do you guys treat these alloy rusts?​

Isn't that brake dust/residue?

 

[Dragon]

Alloy corrodes not rust, there is little that can be done short of a re furb, and it all on an individual basis. A photo is worth more to comment on

I will attach a photo in the morning. It whitish spots I inherited. The car spent the first 3 years in Crystal Palace area and even been lifted off and towed off because of illegal parking. There is a hook mark on the nearside front wheel arch.

 

[Dragon]

Isn't that brake dust/residue?

Brake dusts can be removed.

 

[glojo]

How old is the car?

John

 

[television]

I will attach a photo in the morning. It whitish spots I inherited. The car spent the first 3 years in Crystal Palace area and even been lifted off and towed off because of illegal parking. There is a hook mark on the nearside front wheel arch.

The white spots appear under polished alli when they have got wet and chipped, water gets under the lacquer and gives a milky apearance, you can lightly sand this off and polish it, and just touch up with clear coat as a short term measure. Will wait to see the pics

 

[whitenemesis]

Alloy corrodes not rust, there is little that can be done short of a re furb, and it all on an individual basis. A photo is worth more to comment on

Same thing, surely?

OK rust is generally understood as iron oxide but corrosion is any type of oxidation?

What is the alloy of metals used in road wheels? Magnesium, aluminium...?

 

[television]

Same thing, surely?

OK rust is generally understood as iron oxide but corrosion is any type of oxidation?

What is the alloy of metals used in road wheels? Magnesium, aluminium...?

Rust only attacks iron and steel, alloys corrode in a different way and sheet Alli can rot and crumble away, a form of electrolysis takes place when wet

 

[whitenemesis]

Rust only attacks iron and steel, alloys corrode in a different way and sheet Alli can rot and crumble away, a form of electrolysis takes place when wet

It's still oxidation. With iron the oxides are less dense and cause failure. With aluminium the oxides are more dense and protect the substrate

Question stands, what is the composition of MB road wheels?

 

[television]

It's still oxidation. With iron the oxides are less dense and cause failure. With aluminium the oxides are more dense and protect the substrate

Question stands, what is the composition of MB road wheels?

I think that all approved alli's are mad of the same stuff.

This white corrosion that takes place mainly happens when water gets inbetween the weak clear lacquer and the alli and cant dry out.

It is seldom seen under painted wheels but if you have a blister on painted wheels, once you take the blister off it will be full of white powder

 

[whitenemesis]

I think that all approved alli's are mad of the same stuff.

This white corrosion that takes place mainly happens when water gets inbetween the weak clear lacquer and the alli and cant dry out.

It is seldom seen under painted wheels but if you have a blister on painted wheels, once you take the blister off it will be full of white powder

Exactly what I have.. And having replaced under warranty

 

[television]

The bottom part of the chart covers some questions.

I do know that in germany only wheels cast to MB spec can be used. My V70R wheels have lasted well but I too have blisters on the inside and they atre going away soon to be re done (10 years old)

http://en.wikipedia.org/wiki/Aluminium

 

[Dragon]

I will attach a photo in the morning. It whitish spots I inherited. The car spent the first 3 years in Crystal Palace area and even been lifted off and towed off because of illegal parking. There is a hook mark on the nearside front wheel arch.

Here is a photo. Thanks Malcom.

 

[television]

Those marks are small, almost to small to warrant a re ferb, but they will not get better. I would hook off the loose bit and float some lacquer into the hole. Dont worry that it will stick out proud, for when it dries it shrinks, if there is still a hole when dry do it again,,after 2 days just polish up with T cut to flatten it. No one can do an invisable repair, but if the hole is sealed it will not get worse

 

[Bazzle]

Those marks are small, almost to small to warrant a re ferb, but they will not get better. I would hook off the loose bit and float some lacquer into the hole. Dont worry that it will stick out proud, for when it dries it shrinks, if there is still a hole when dry do it again,,after 2 days just polish up with T cut to flatten it. No one can do an invisable repair, but if the hole is sealed it will not get worse

100% agree

Bazzle

 

[Dragon]

Those marks are small, almost to small to warrant a re ferb, but they will not get better. I would hook off the loose bit and float some lacquer into the hole. Dont worry that it will stick out proud, for when it dries it shrinks, if there is still a hole when dry do it again,,after 2 days just polish up with T cut to flatten it. No one can do an invisable repair, but if the hole is sealed it will not get worse

A hole? What the likely cause holes to be developed? Road salts over the winters?

 

[glojo]

Those marks are small, almost to small to warrant a re ferb, but they will not get better. I would hook off the loose bit and float some lacquer into the hole. Dont worry that it will stick out proud, for when it dries it shrinks, if there is still a hole when dry do it again,,after 2 days just polish up with T cut to flatten it. No one can do an invisable repair, but if the hole is sealed it will not get worse

I must confess they are far worse than the wheels I had changed under warranty, but as Malcolm has said, those marks are small, but they will certainly NOT get any better. Repair them now would be my recommendation.

Are those tyres, or black rubber bands encircling the wheels?

Regards
John

 

[Dragon]

I must confess they are far worse than the wheels I had changed under warranty, but as Malcolm has said, those marks are small, but they will certainly NOT get any better. Repair them now would be my recommendation.

Are those tyres, or black rubber bands encircling the wheels?

Regards
John

Those are T-cut smears. I used it to polish it but it got worse and assist to corrode the alloys even more.

 

[television]

A hole? What the likely cause holes to be developed? Road salts over the winters?

Anything from stone chips to badly painted from new, also maybe the wheel have been cleaned with a wheel cleaner, it could be salt, so many reasons.

It only needs to get a little moisture trapped in the hole and the chemical reaction starts.

The Alloys on my SL are fine on the outer side but the paint is blisterng on the inside of the wheels, so in the next few days I will take them off and respray the inside section light grey.