Rust

Author
Discussion

Abc321

Original Poster:

449 posts

95 months

Friday 19th February 2021
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Hello all - I don’t know what’s best for sorting the rust on the drums(?). I think the car stood for a while, but used regularly now.

Any recommendations to sort/treat would be appreciated! Thank you smile



Crafty_

13,283 posts

200 months

Friday 19th February 2021
quotequote all
Wire brush off the loose stuff, paint with hammerite.

Abc321

Original Poster:

449 posts

95 months

Friday 19th February 2021
quotequote all
Crafty_ said:
Wire brush off the loose stuff, paint with hammerite.
Simple as that, thank you!

journeymanpro

757 posts

77 months

Friday 19th February 2021
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Replace with bosch or trw discs

StescoG66

2,116 posts

143 months

Saturday 20th February 2021
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Those discs look to have quite a lip on them and could need replacing.......

paintman

7,687 posts

190 months

Saturday 20th February 2021
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Good point.
Before you spend time cleaning & painting measure the remaining disc thickness & decide whether they're worth the time & effort.

Abc321

Original Poster:

449 posts

95 months

Saturday 20th February 2021
quotequote all
Thank you all - MOT next month so will have a check over then!

348jeff

125 posts

127 months

Sunday 21st February 2021
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If you don't mind removing them you can soak them in a bath of POR15 Metalprep and then paint with a calliper aerosol paint. (I like the K2 brand on eBay),

If you don't want to remove them then rub them down as best as you can and then clean thoroughly with panel wipe or some other cleaner that doesn't leave a residue. Mask as best as you can by using plastic sheeting/masking tape etc then just gently rotate the wheel whilst spraying the disk.

NB Obviously don't deliberately spray the braking a surface but its a big deal if you do get some paint on it as after a bout 10 miles it gets worn away by the act of braking.

Although having very little wear these were lft near a garage door where a bit of rain had splashed on them. Was thinking of just replacing them but decided to give it a go first with a bath of metal prep...







Used a builders rubble tub for the "bath"




It took a few days with some agitation with a brush now and again






Followed by a spraying with K2 calliper paint (from eBay)




After a few miles any overspray on the braking surface gets wiped away. Even the score mark shown on the disc has now gone leaving nice crisp edges.


droopsnoot

11,923 posts

242 months

Monday 22nd February 2021
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I'm not sure how much that POR-15 product costs (I've used the paint, but not that one) but Citric Acid powder is very cheap and would do a very similar job, though I'd like to find out whether it causes any issues specifically with brake discs. Also electrolytic rust removal would do it too. And I think I'd mask off the friction area before painting - it may just be the photo, but it does look as if there's as much on there as everywhere else.

steveo3002

10,515 posts

174 months

Monday 22nd February 2021
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its not like theyre going to rust away , not really worth spending alot

just wire brush and hammerite /metal paint if the look bothers you , might need redoing every 2 years or so

journeymanpro

757 posts

77 months

Monday 22nd February 2021
quotequote all
348jeff said:
If you don't mind removing them you can soak them in a bath of POR15 Metalprep and then paint with a calliper aerosol paint. (I like the K2 brand on eBay),

If you don't want to remove them then rub them down as best as you can and then clean thoroughly with panel wipe or some other cleaner that doesn't leave a residue. Mask as best as you can by using plastic sheeting/masking tape etc then just gently rotate the wheel whilst spraying the disk.

NB Obviously don't deliberately spray the braking a surface but its a big deal if you do get some paint on it as after a bout 10 miles it gets worn away by the act of braking.

Although having very little wear these were lft near a garage door where a bit of rain had splashed on them. Was thinking of just replacing them but decided to give it a go first with a bath of metal prep...







Used a builders rubble tub for the "bath"




It took a few days with some agitation with a brush now and again






Followed by a spraying with K2 calliper paint (from eBay)




After a few miles any overspray on the braking surface gets wiped away. Even the score mark shown on the disc has now gone leaving nice crisp edges.

Or save some considerable time and effort and fit some coated discs like trw or bosch.

Arnie Cunningham

3,767 posts

253 months

Tuesday 23rd February 2021
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348jeff said:
If you don't mind removing them you can soak them in a bath of POR15 Metalprep and then paint with a calliper aerosol paint. (I like the K2 brand on eBay),
I was all set to be sniffy about this, thinking it was a knackered old pair of discs you were jazzing up. But no - actually nice job.
I think I would have masked the braking surface off, but as you say, that comes off super quick anyway.

Abc321

Original Poster:

449 posts

95 months

Monday 22nd March 2021
quotequote all
Update if anyone is bothered, MOT advisory says pads are roughly 70% worn so will look at getting coated discs as suggested above to sort this. Thank you to all for suggestions.