Bike lube and car paint

[junkie_ball]

A strange question here. Can bike chain lube damage car paintwork. I've notice three big patches (about the size of a grapefruit) of discolouration on my car right below where the rear mech is when it's on top of the car in transit. I've tried to polish these out and whilst they seem to disappear once it dries out it's noticeable again. I cannot think of anything else that has been on the car in that area. It's like the paint has been stained / discoloured it doesn't look or feel like the lacker has lifted at all.

 

[screenman]

Any chance you had sun cream lotion on you hands and put them on the roof.

 

[junkie_ball]

Any chance you had sun cream lotion on you hands and put them on the roof.

Highly likely sometimes i would have as i tend to as very white. Could that affect paintwork?

 

[screenman]

Highly likely sometimes i would have as i tend to as very white. Could that affect paintwork?

Certainly does big style, I often have to machine polish it out for customers.

 

[jarlrmai]

Yeah the Titanium Dioxide has an effect on the paintwork

It's hard to fix sometimes even a machine polish will not work or only last a while.

 

[screenman]

Yeah the Titanium Dioxide has an effect on the paintwork

It's hard to fix sometimes even a machine polish will not work or only last a while.

I do not doubt you, but I have not had one come back yet from the customer, does not mean much though.

 

[junkie_ball]

Yeah the Titanium Dioxide has an effect on the paintwork

It's hard to fix sometimes even a machine polish will not work or only last a while.

Thanks for the info unfortunately not the news i wanted to hear.

I do not doubt you, but I have not had one come back yet from the customer, does not mean much though.

I have a machine polisher and will give it a go later this week. Just fingers crossed i guess. Would you guys recommend any particular polish i know i have mer polish in the garage or would it need more of a cutting agent to buff it out?

 

[Profpointy]

slightly related, but a mate in Australia, purely in the interests of science mark you, wondered if you really could fry an egg on the bonnet when it was really hot. The answer, sadly, is "no"

However, science was served, as he did discover that raw egg does mark paint, but it can be polished out by desperate rubbing with t-cut before you return your hire car

 

[screenman]

I use many different compounds, I suggest you try something quite fine at first and see what happens.

 

[NorthernDave]

Farecla is good, but not cheap. Whatever you use definitely start with a fine compound first though and if you're not used to using a machine polisher be careful as it can be very easy to go through the paint.

 

[Accy cyclist]

Certainly does big style, I often have to machine polish it out for customers.

That answers why that black VW Golf i had, had hand prints i couldn't remove no matter what i tried.

 

[junkie_ball]

Looks like i found a solution to remove the dreaded marks. I ended up having to use an industrial glue and abrasive remover, luckily my father used to run his own garage and had some left over from when he did body work repair. It still took 3-4 applications of this stuff to move it (had to be careful not to burn through the lacker). I then had to follow that up with a really good polish but looks like it has removed every last mark off the car (almost looks like it's just came out of the factory .