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Solution for rusty brake rotor hats
- Thread starter EarlyAdopter
- Start date
Asymmetry
Member
Really? that will end up on the brake pads, I will reduce noise and vibrations but also reduce braking power. Better to paint it then take it to local garage and get the rotor machined if you are getting NVH.
docrice
Member
Apparently this product is intended to be sprayed on the rotor surface itself. There's a secondary usage in cleaning up rusted areas which is the application of interest for this thread.
My write-up: 2018.08.05: Rotor Hat Restore
My write-up: 2018.08.05: Rotor Hat Restore
Looks beautiful.
Do you know if the the surface area where the pad meets the rotor looks better now than before?
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docrice
Member
The rotor surface itself still looks the same as before. It's not like the Würth SBS product makes it like mirror-like or anything.
I’m definitely going to try this.
Just a couple of comments - I wouldn’t use cold galvanizing (zinc based) as a substitute. They aren’t made for the temps you will see on the rotors.
Aluminum particles will convert to aluminum oxide pretty quickly when heated in air (this is part of the thermite reaction). I wonder if they’ve worked out a trick where the particles that stay in place serve as paint, and the ones that get rubbed by the pad get oxidized and those particles scrub the rotor clean before getting blown away
Just a couple of comments - I wouldn’t use cold galvanizing (zinc based) as a substitute. They aren’t made for the temps you will see on the rotors.
Aluminum particles will convert to aluminum oxide pretty quickly when heated in air (this is part of the thermite reaction). I wonder if they’ve worked out a trick where the particles that stay in place serve as paint, and the ones that get rubbed by the pad get oxidized and those particles scrub the rotor clean before getting blown away
Xenoilphobe
Well-Known Member
Where do you buy this stuff. I need to blast my hats before winter...
Never mind - got four cans from these guys.
wurth sbs - eEuroparts.com® Search Results
Never mind - got four cans from these guys.
wurth sbs - eEuroparts.com® Search Results
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I just did this today. In short, it looks good so far and I'll see how it holds up. Apparently holds up for a long time, if not forever(?) according to posts on this topic.
2018.08.05: Rotor Hat Restore
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Where did you purchase it. All the rave but no directions as to WHERE TO BUY? The companies website doenst have it for sale..
docrice
Member
How is it holding up? The link for where to buy mentions it lasts a year/10k miles for the noise aspect, but I'm mostly concerned with the ability to cover the rusty rotor hats.
docrice
Member
Cosmetically it holds up relatively well around the hub. I'd recommend freshening it up annually as Lloyd mentioned since the outer edges (where it meets the rotor surface) gets a bit tarnished by the rust as it bleeds onto the SBSed section whenever wheel cleaning is done via spray bottle. The hub itself doesn't stay super bright either although I generally don't make an effort to clean the hub itself.
In any case it looks a lot better than without the SBS treatment. I'd say it's been worth it so far.
In any case it looks a lot better than without the SBS treatment. I'd say it's been worth it so far.
docrice
Member
And one last question, what happens when you clean your wheels? Is this coating Sensitive to certain cleaners? Does it stain? For example, I had rotors that were zinc plated and I used a wheel cleaner that turns purple with in contact with rust, and break dust...it turns my pretty silver rotors brown. So how do these hold up against whatever you clean your wheels with?
Thanks, My shipment arrived last week. Shipping is not cheap so I picked up 6 cans. If anyone in OC want some let me know I'll let it go for the price plus part of the shipping. Since I think it will take a long time to use all of it...
docrice
Member
I bought one can to cover all 4 corners ... and likely still have enough to do one or more entire refreshes. I spray relatively conservatively though.
When I clean the wheels with something like Sonax Full Effect, the reddish bleeding effect from the iron deposits make its way onto the textured surface of the rotor hat/hub so it looks a bit pitted. However, I almost never make a direct effort to clean the hub either so it's not like I'm doing a thorough wheel-cleaning job by removing the wheels completely (which would be ideal since I can clean the wheel barrel as well as the inside of the spokes) but that's more work than I want to do on a monthly basis.
When I clean the wheels with something like Sonax Full Effect, the reddish bleeding effect from the iron deposits make its way onto the textured surface of the rotor hat/hub so it looks a bit pitted. However, I almost never make a direct effort to clean the hub either so it's not like I'm doing a thorough wheel-cleaning job by removing the wheels completely (which would be ideal since I can clean the wheel barrel as well as the inside of the spokes) but that's more work than I want to do on a monthly basis.
And I know it was only May that you restored the rotors using SBS, how ar e they holding up?I just did this today. In short, it looks good so far and I'll see how it holds up. Apparently holds up for a long time, if not forever(?) according to posts on this topic.
2018.08.05: Rotor Hat Restore
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