E90Post
 


The Tire Rack
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Wash, Wax, Detailing and Cosmetic protection/repairs > Buffing Technique



Reply
 
Thread Tools Search this Thread
      03-03-2007, 05:55 PM   #1
mitch88
Private
3
Rep
58
Posts

Drives: E92 328i
Join Date: Oct 2006
Location: canada

iTrader: (0)

Buffing Technique

I have read that when applying the polish you are not supposed to rub in a circular motion but rather a back and forth motion to prevent swirl marks. Once the polish has hazed is it ok to buff off in a circular motion?
Thank you
Appreciate 0
      03-03-2007, 11:14 PM   #2
nikegunit
$$$
nikegunit's Avatar
Jordan
8
Rep
103
Posts

Drives: 335i
Join Date: Jan 2007
Location: Air

iTrader: (0)

umm buffing circular or back and forth shouldnt cause swirls either way. its not like the clear coat is layed down in straight lines. the coat is a thin connected matric, buffing with polish is to rid the paint of swirls, not create them.

when applying wax(not polish), most manufactures state to work in a circular motion, im guessing polish should work the same way.
Appreciate 0
      03-04-2007, 10:02 AM   #3
pander5
Special Forces - Discretion is superior
pander5's Avatar
32
Rep
1,011
Posts

Drives: 335i Coupe Sapphire Black
Join Date: Mar 2006
Location: Tampa, FL

iTrader: (0)

Garage List
2007 335i Coupe  [0.00]
The advice of linear motions whenever applying or removing any product (even wash) is that IF you pick up any grit or particles that may cause marring it will leave a tiny scratch in a straight line. When light catches these lines they will not reflect back to you in a 360 degree circle and are only visible from specific angles. Circular motions will leave almost full circles and concentric rings and are reflected back from almost every angle. Spider web type marring were created from rubbing something in many different directions. Next time you look at swirls in direct sun walk around the car and you can see the same circle from every angle.

When I inpsect my car's paint I will eventually, over say 3-6 months, see very small lines in the directions I've washed i.e. front to back from the front bumper to rear bumper and up and down on the side panels.

Swirls are inevitable IMO and straight line movements simply keep them slightly hidden.
__________________
M3 + trailer hitch = oxymoron
Appreciate 0
      03-04-2007, 10:38 AM   #4
Ninjaneer
Shadow Warrior
Ninjaneer's Avatar
United_States
159
Rep
2,095
Posts

Drives: '07 335i Sedan
Join Date: Aug 2006
Location: Florida

iTrader: (0)

Quote:
Originally Posted by pander5 View Post
The advice of linear motions whenever applying or removing any product (even wash) is that IF you pick up any grit or particles that may cause marring it will leave a tiny scratch in a straight line. When light catches these lines they will not reflect back to you in a 360 degree circle and are only visible from specific angles. Circular motions will leave almost full circles and concentric rings and are reflected back from almost every angle. Spider web type marring were created from rubbing something in many different directions. Next time you look at swirls in direct sun walk around the car and you can see the same circle from every angle.

When I inpsect my car's paint I will eventually, over say 3-6 months, see very small lines in the directions I've washed i.e. front to back from the front bumper to rear bumper and up and down on the side panels.

Swirls are inevitable IMO and straight line movements simply keep them slightly hidden.
Now I don't feel too bad about the slight straight line scratches I've seen. Thankfully no spider webs from what I've noticed on my ride. Lately when I'm in traffic at night and my lights shine on the bumper of the car in front of me I tend to find myself inspecting it for swirls and hoping my bumper doesn't look that bad with light shining on it!
__________________
335i E90 / Arctic / Gray / Burl Walnut / Steptronic / ZPP / ZSP / Paddles / CA / Nav / PDC / OEM Spoiler
Mods:
PIAA Angel Eyes, Rear Fog Switch, Escort X50 Blue hardwire, 30% Charcoal Llumar
Installing soon: Rear Power Outlets (Happy Robot mod!)
Appreciate 0
      03-06-2007, 12:38 PM   #5
mitch88
Private
3
Rep
58
Posts

Drives: E92 328i
Join Date: Oct 2006
Location: canada

iTrader: (0)

To be more specific, I am referring to what zaino says about applying there sealant (Z2pro). They say when applying to use linear motions not circular, which I perfectly understand. Zaino never says anything about buffing off the Z2 pro whether to use linear motions again or if you should use circular motions. So what motions should I use?
Appreciate 0
      03-06-2007, 06:12 PM   #6
OC Guy
General
OC Guy's Avatar
United_States
562
Rep
18,123
Posts

Drives: AW 335D E90
Join Date: Oct 2006
Location: Irvine/Aliso Viejo, CA

iTrader: (9)

Garage List
2007 335i  [0.00]
The same motions you use for application will work just fine.
Appreciate 0
      03-06-2007, 06:50 PM   #7
pander5
Special Forces - Discretion is superior
pander5's Avatar
32
Rep
1,011
Posts

Drives: 335i Coupe Sapphire Black
Join Date: Mar 2006
Location: Tampa, FL

iTrader: (0)

Garage List
2007 335i Coupe  [0.00]
Linear motions are recommended whether you are applying product or removing it. Again, the chance of marring your finish with a small piece of something caught in your towel is there whenever you make a "friction" pass with anything on your paint. I think Sal simply omitted that from the product removal advice.
__________________
M3 + trailer hitch = oxymoron
Appreciate 0
      03-06-2007, 06:52 PM   #8
MonacoBimm
Banned
Panama
45
Rep
1,859
Posts

Drives: Sapp. Black 330i(2nd e90)
Join Date: Jun 2006
Location: Panama City, Panama

iTrader: (1)

Quote:
Originally Posted by Ninjaneer View Post
Lately when I'm in traffic at night and my lights shine on the bumper of the car in front of me I tend to find myself inspecting it for swirls and hoping my bumper doesn't look that bad with light shining on it!
Hahahaha I do that every single time! Especially with black cars!
Appreciate 0
      03-07-2007, 11:13 AM   #9
canucklion
pull my finger to get your kinder® surprise
canucklion's Avatar
Canada
152
Rep
10,455
Posts

Drives: circles around you
Join Date: Dec 2005
Location: Toronto, Canada

iTrader: (9)

+1

AFAIK (correct me if I'm wrong Picus), straight line application is nothing magical or special, it's just what pander said, to better high the marrings if you do pick up contaminants on your application apd when buffing your car.

And yes, swirls are inevitable, even if you're very careful with how you wash/wax your car, there are so much $h!t in the environment that can potentially marr/scar your paint
Quote:
Originally Posted by pander5 View Post
Swirls are inevitable IMO and straight line movements simply keep them slightly hidden.
__________________
Appreciate 0
Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 04:38 PM.




e90post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST