Recent Topics
People want dirty oil, why?
by zach1900
01/31/15 11:30 AM
L10241 from a Harley cut open pics
by SJohnson
01/31/15 11:18 AM
0W-30 Mobil 1 Synthetic Oil
by DonSoriano
01/31/15 10:38 AM
Advance Auto 35% off codes.
by sayjac
01/31/15 10:28 AM
Additive to convert GTX 10W30 into a high mileage
by gold01ca
01/31/15 10:05 AM
5W20 VS 5W30
by oilchangeguy
01/31/15 09:15 AM
Motomaster Formula 1 Synthetic 0W20
by nobb
01/31/15 08:35 AM
Battery Tender Lithium Batteries
by Oil Changer
01/31/15 06:13 AM
New to me 2007 Tahoe-Advice?
by Indydriver
01/31/15 05:20 AM
come watch me cheese Mass Effect
by Nick R
01/31/15 01:19 AM
Insane Restoration/ Modification Video of a Mini
by expat
01/30/15 11:58 PM
Name That Shape
by Merkava_4
01/30/15 10:38 PM
Newest Members
aarondj30, berniekk, SilverD, ChrisGuerrero, diematrix5000
52678 Registered Users
Who's Online
93 registered (abycat, 29662, 2010_FX4, ag_ghost, AandPDan, 72te27, 14 invisible), 1931 Guests and 132 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
52678 Members
66 Forums
225807 Topics
3593956 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG
Topic Options
#3444479 - 08/03/14 07:55 AM What is this?
Char Baby Online   content


Registered: 05/25/05
Posts: 7847
Loc: Rochester NY
When comparing new brake rotors for my vehicles, I notice that some rotors mention in their description/spec that:

They have a rust preventative coating!

I see this on many auto parts sites. For example, the AAP WearEver Rotors mention a rust preventative coating but, the WAGNER DO NOT mention this.

I have used both rotor brands and notice no extra rust prevention while on the car...thay all rust the same! smile

Is this just a light maching oil applied to the rotors after mfg'ing for storage while in the BOX???
_________________________
"Retired"

1980 Firebird FORMULA V8-NEW
2001 Lexus RX-300 V6-NEW
2004 Nissan Altima 2.5S-NEW
2006 Mazda 3i 2.0L-PreOwned

Top
#3444482 - 08/03/14 07:58 AM Re: What is this? [Re: Char Baby]
LotI Offline


Registered: 01/01/13
Posts: 439
Loc: America's Dairyland
My guess is the hat of the rotor is painted/powder coated. Have you seen pictures or seen them in person?
_________________________
03 Honda VFR800VTEC .8L RT6
05 MINI Cooper S 1.6L M1
06 Ducati Monster S2R .8L RT6
12 Ford E450 6.8L PP
12 Honda Accord 2.4L QSUD

Top
#3444483 - 08/03/14 07:59 AM Re: What is this? [Re: Char Baby]
3800Series Offline


Registered: 08/02/14
Posts: 578
Loc: Gulf Coast, MS
I wouldn't put to much thought in it. No matter what it is the first time you brake hard odds are it will be shaven off.
_________________________
'95 Regal 3.8 -95k+

Top
#3444486 - 08/03/14 08:00 AM Re: What is this? [Re: LotI]
Char Baby Online   content


Registered: 05/25/05
Posts: 7847
Loc: Rochester NY
Originally Posted By: LotI
My guess is the hat of the rotor is painted/powder coated. Have you seen pictures or seen them in person?


Not really! I have purchaced non painted hats/vents that mentioned this. The painted hats such as Raybestos Adv Tech or Centric Premium mention the paint. Here is an example:

http://www.rockauto.com/catalog/moreinfo.php?pk=300931&cc=1373879

http://shop.advanceautoparts.com/p/wearever-brake-rotor-front-yh145308/5670068-P?navigationPath=L1*14921%7CL2*16462%7CL3*15696#fragment-2


Edited by Char Baby (08/03/14 08:05 AM)
_________________________
"Retired"

1980 Firebird FORMULA V8-NEW
2001 Lexus RX-300 V6-NEW
2004 Nissan Altima 2.5S-NEW
2006 Mazda 3i 2.0L-PreOwned

Top
#3444492 - 08/03/14 08:06 AM Re: What is this? [Re: Char Baby]
Char Baby Online   content


Registered: 05/25/05
Posts: 7847
Loc: Rochester NY
Thanks, I won't put too much faith in this term/statement of "rust prev coat"!
_________________________
"Retired"

1980 Firebird FORMULA V8-NEW
2001 Lexus RX-300 V6-NEW
2004 Nissan Altima 2.5S-NEW
2006 Mazda 3i 2.0L-PreOwned

Top
#3444514 - 08/03/14 08:38 AM Re: What is this? [Re: Char Baby]
Roadkingnc Offline


Registered: 07/16/11
Posts: 638
Loc: NC USA
Its not the friction surface, its the hat part that meets the wheel that is treated. If you have alloy wheels and the rotor is visible the treated ones would be the ones to get.
If appearance isn't important to you go with the untreated ones.

Top
#3444521 - 08/03/14 08:44 AM Re: What is this? [Re: Char Baby]
Corvette Owner Offline


Registered: 01/22/03
Posts: 1650
Loc: Waldorf, Maryland
Usually zinc plating, and it works fine, just not on the friction surface. This surface is cleaned after a few stops.
_________________________
Vehicles:
98 Corvette
06 Murano
96 Chevy Van (Custom Conversion)
14 Chevy Impala
10 Starcraft Boat
13 Buick Enclave

Top
#3445584 - 08/04/14 11:33 AM Re: What is this? [Re: Char Baby]
Jiblet Offline


Registered: 09/24/09
Posts: 105
Loc: Massachusetts
Maybe they mean the cosmoline coating or whatever they use these days.

Top
#3445594 - 08/04/14 11:49 AM Re: What is this? [Re: Char Baby]
MolaKule Offline


Registered: 06/05/02
Posts: 14959
Loc: Iowegia
Originally Posted By: Char Baby
When comparing new brake rotors for my vehicles, I notice that some rotors mention in their description/spec that:

They have a rust preventative coating!

I see this on many auto parts sites. For example, the AAP WearEver Rotors mention a rust preventative coating but, the WAGNER DO NOT mention this.

I have used both rotor brands and notice no extra rust prevention while on the car...thay all rust the same! smile

Is this just a light maching oil applied to the rotors after mfg'ing for storage while in the BOX???


Most packaged auto parts contain a film of rust prevention oil to retard or prevent rust accumulation of parts while in storage.

In the case of rotors, this film should be thoroughly removed by brake cleaner before installation.

One thing you do not want is an oil film or any lubricant getting into the pad material to promote glazing.


Edited by MolaKule (08/04/14 11:50 AM)
_________________________
When I told you I was normal, I may have exaggerated slightly. smile

Top
#3446357 - 08/05/14 07:04 AM Re: What is this? [Re: MolaKule]
Char Baby Online   content


Registered: 05/25/05
Posts: 7847
Loc: Rochester NY
Originally Posted By: MolaKule
Originally Posted By: Char Baby
When comparing new brake rotors for my vehicles, I notice that some rotors mention in their description/spec that:

They have a rust preventative coating!

I see this on many auto parts sites. For example, the AAP WearEver Rotors mention a rust preventative coating but, the WAGNER DO NOT mention this.

I have used both rotor brands and notice no extra rust prevention while on the car...thay all rust the same! smile

Is this just a light maching oil applied to the rotors after mfg'ing for storage while in the BOX???


Most packaged auto parts contain a film of rust prevention oil to retard or prevent rust accumulation of parts while in storage.

In the case of rotors, this film should be thoroughly removed by brake cleaner before installation.

One thing you do not want is an oil film or any lubricant getting into the pad material to promote glazing.


Oh absolutly! I have seen this machine oil on most new rotors in the box(inside the plastic bag). I always spray brake cleaner on the new rotors to remove the oil. Though, I have purchaced new rotors that were just inside the box(no bag) and were dry. I spray'em clean anyway!

Thanks,

CB smile


Edited by Char Baby (08/05/14 07:05 AM)
Edit Reason: smile
_________________________
"Retired"

1980 Firebird FORMULA V8-NEW
2001 Lexus RX-300 V6-NEW
2004 Nissan Altima 2.5S-NEW
2006 Mazda 3i 2.0L-PreOwned

Top