When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Over a month ago, I painted my calipers gold colour, let it dry, all that jazz but its still spreading all over my rotors in 2 places ( in the picture the black arrow is whats constantly yellow now, which should be silver..annoying because I cant remove it now unless i dig deep and clean it with rubbing alcohol) and the red arrow is the result when I dont drive ( once i drive it goes away) but still... why is the paint still spreading? its been over a month.
I bough the Canadian tire caliper paint VHT that was recommended..
Any thoughts?
Last edited by itshere; 11-26-2018 at 12:34 PM.
Reason: Adding Picture
I cant tell from the pictures with all that water on the rotor in the pictures, but it just looks like rust, which is normal to build up after not driving the car for a while (even a day or few hours depending on the carbon content of the rotors and any coating).
If there is paint actually coming off the caliper, its most likely because you didn't prep the surface properly or you didn't cure the paint properly (high heat paint usually need to be cured by applying high heat) or both
If its just heat curing you can try to drive the car in a way to get the brakes hot enough like when you bed in brake pads...otherwise you need to clean and sand/rough up the calipers and repaint...
I agree with Hashim. It looks like normal surface rust which is very common after a car has not been driven for a period of time. The part of the rotor marked with the black arrow shows where the pad DOES NOT come into contact with the rotor, hence why it never gets scraped "silver." (Which is why I painted my rotor hats).
I cant tell from the pictures with all that water on the rotor in the pictures, but it just looks like rust, which is normal to build up after not driving the car for a while (even a day or few hours depending on the carbon content of the rotors and any coating).
If there is paint actually coming off the caliper, its most likely because you didn't prep the surface properly or you didn't cure the paint properly (high heat paint usually need to be cured by applying high heat) or both
If its just heat curing you can try to drive the car in a way to get the brakes hot enough like when you bed in brake pads...otherwise you need to clean and sand/rough up the calipers and repaint...
This is not rust at all. These are brand new rotors and brakes, it was replaced last month. The paint from the calipers is on both the red and black arrows.
Rotors can rust a day after you install them, as was mentioned it depends on the rotors carbon content and any coatings....ones with no coating (which yours look they aren't coated) will usually rust within a week or two of installation (even faster if it rains) which is why others (i.e. ILM-NC G37S above) mentioned painting the hats before installing them.
Do you have better pictures, as I said above its hard to see any detail in those pictures because of the water all over them.
Rotors can rust a day after you install them, as was mentioned it depends on the rotors carbon content and any coatings....ones with no coating (which yours look they aren't coated) will usually rust within a week or two of installation (even faster if it rains) which is why others (i.e. ILM-NC G37S above) mentioned painting the hats before installing them.
Do you have better pictures, as I said above its hard to see any detail in those pictures because of the water all over them.
Actually, these rotors are coated. No other pics, but I can zoom in to show you. In order for me to remove the red circle area ( i can use rubbing alcohol or simply a cloth, if it was rust i wouldn't be able to) its simply the paint from the calipers. whats on top gets clean once you drive but when you stop for a few hours, thats the result.
I cant tell from the pictures with all that water on the rotor in the pictures, but it just looks like rust, which is normal to build up after not driving the car for a while (even a day or few hours depending on the carbon content of the rotors and any coating).
If there is paint actually coming off the caliper, its most likely because you didn't prep the surface properly or you didn't cure the paint properly (high heat paint usually need to be cured by applying high heat) or both
If its just heat curing you can try to drive the car in a way to get the brakes hot enough like when you bed in brake pads...otherwise you need to clean and sand/rough up the calipers and repaint...
OP wont accept it is rust. Ok, but are the calipers dry? If so then where would the wet paint be coming from? Do the rotors look the same when it is not raining and not humid? Also what brand rotors are they?
11-26-2018, 12:29 PM
