Removing rust on rotors hats to prep for paint
#1
Rennlist Member
Thread Starter
Removing rust on rotors hats to prep for paint
Hey guys,
The rotors from my S4 have developed rust on the rotors hats and around the out edge on the vane ends (they've been sitting off the car while I attend to other maint issues).
I want to remove the rust and then paint the hats and possibly the outer edge/vane ends.
Question: does anyone have any suggestions for removing the rust on the rotor hats?
I don't want to wire brush them. Some type of chemical method is preferred.
Question: Is it worth removing the rust and painting the outer edge of the rotors where the vane ends are?
Question: Are the rotor edge visisble when the wheels are on the car? If they are not visible, seems pointless to paint the rotor edge.
Any tips are greatly appreciated. Thanks!
Ed
The rotors from my S4 have developed rust on the rotors hats and around the out edge on the vane ends (they've been sitting off the car while I attend to other maint issues).
I want to remove the rust and then paint the hats and possibly the outer edge/vane ends.
Question: does anyone have any suggestions for removing the rust on the rotor hats?
I don't want to wire brush them. Some type of chemical method is preferred.
Question: Is it worth removing the rust and painting the outer edge of the rotors where the vane ends are?
Question: Are the rotor edge visisble when the wheels are on the car? If they are not visible, seems pointless to paint the rotor edge.
Any tips are greatly appreciated. Thanks!
Ed
#2
Rennlist Member
Thread Starter
Ok, thanks, I'll give it a shot.
#3
Get a can of the Rustoleum stuff and it sticks to it just fine.
#4
Team Owner
clean off the mating surfaces as well on the hubs and the inner hats, you can use some anti seize here so they wont rust and they will be flat
#5
Basic Sponsor
Rennlist
Site Sponsor
Rennlist
Site Sponsor
Use Hammerite paint - works really well
__________________
Does it have the "Do It Yourself" manual transmission, or the superior "Fully Equipped by Porsche" Automatic Transmission? George Layton March 2014
928 Owners are ".....a secret sect of quietly assured Porsche pragmatists who in near anonymity appreciate the prodigious, easy going prowess of the 928."
Does it have the "Do It Yourself" manual transmission, or the superior "Fully Equipped by Porsche" Automatic Transmission? George Layton March 2014
928 Owners are ".....a secret sect of quietly assured Porsche pragmatists who in near anonymity appreciate the prodigious, easy going prowess of the 928."
#6
Addict
Rennlist Member
Rennlist Member
Plus 1 as Roger said.
Find it at Home Depot. You can paint it on and it looks like you sprayed it. It's Rustoleum Hammered finish paint and it has a mild "texture" or hammered look to it. Jim, Roger, and I have done it. My 79 has gone 4 years with it. I brushed it on right over the rust as it says in the instructions. I also did the vents on the outside of the rotors. Use a small brush to put it on, put one more coat on per the instructions. The first time you put the brakes on, it will "wipe" a nice clean line in the hat.
Here is a some info on it http://www.epaintstore.com/xcart4/pr...6&cat=0&page=6
Buy it at Lowes or H Depot.
Easy and effective. I think Rog and Jim did theirs about a year before I did mine and theirs looks great as well.
Good luck!
Find it at Home Depot. You can paint it on and it looks like you sprayed it. It's Rustoleum Hammered finish paint and it has a mild "texture" or hammered look to it. Jim, Roger, and I have done it. My 79 has gone 4 years with it. I brushed it on right over the rust as it says in the instructions. I also did the vents on the outside of the rotors. Use a small brush to put it on, put one more coat on per the instructions. The first time you put the brakes on, it will "wipe" a nice clean line in the hat.
Here is a some info on it http://www.epaintstore.com/xcart4/pr...6&cat=0&page=6
Buy it at Lowes or H Depot.
Easy and effective. I think Rog and Jim did theirs about a year before I did mine and theirs looks great as well.
Good luck!
#7
Addict
Rennlist Member
Rennlist Member
Oh yeah,
IT comes in Silver, Black, and a funky bronze color. I did the 79 in black to give it a "2 piece rotor" look.
Jim and Roger did theirs in silver I believe.
Both look good!
IT comes in Silver, Black, and a funky bronze color. I did the 79 in black to give it a "2 piece rotor" look.
Jim and Roger did theirs in silver I believe.
Both look good!
Trending Topics
#9
Rennlist Member
Thread Starter
Ok, more good advice. I especially like the idea of being able to paint the outer edge, the vane edges, even if no one will be able to see them. I hate rust.
Thanks guys! -Ed
Thanks guys! -Ed
#10
Race Director
https://rennlist.com/forums/showthre...painted+rotors
Been there done that....
as mentioned before you MUST remove all rust prior to paint...otherwise the paint will fall off with the rust....
two years later and my rears still look great....the fronts are not as good, showing some rust, but I think this is due to the heat generated on the track....
Been there done that....
as mentioned before you MUST remove all rust prior to paint...otherwise the paint will fall off with the rust....
two years later and my rears still look great....the fronts are not as good, showing some rust, but I think this is due to the heat generated on the track....
#11
Team Owner
clean off the rotor surface with acetone, so the pads are not cleaning off the braking surface , this could contaminate the pads and cause them to glaze as the paint will be baking into your pads
#12
Submerge in Muratic Acid. About 12 to 24 hrs. Completely strips to bare metal. Hose off and blow dry. Paint hat and back side and down into vents with heat paint. ( Not for kids. Its hot and it burns. )