E90Post
 


Coby Wheel
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Wash, Wax, Detailing and Cosmetic protection/repairs > Should I clay bar/decontaminate the paint before I wax or no?



Reply
 
Thread Tools Search this Thread
      03-14-2021, 04:51 PM   #1
Mosaud1998
Colonel
Mosaud1998's Avatar
United_States
3922
Rep
2,629
Posts

Drives: 2019 BMW 540
Join Date: Nov 2019
Location: Suburb of Chicago

iTrader: (0)

Garage List
2019 BMW 540  [0.00]
Should I clay bar/decontaminate the paint before I wax or no?

I clay bar and waxed my car in November of 2020. Didn't drive the car much during the winter. Maybe once but it wasn't snowing and there was no slush on the roads.

I am thinking about waxing it next week. Should I clay bar/decontaminate the paint before I apply wax or there's no need to do all that since I didn't drive the car?
Appreciate 0
      03-14-2021, 05:50 PM   #2
Smgs1992
Captain
720
Rep
946
Posts

Drives: 2007 bmw 335i
Join Date: Apr 2020
Location: Cincinnati ohio

iTrader: (0)

Feel the paint and see if its rough or if its smooth. Rough means needs to be clayed smooth should be fine. If you’d like to be careful if it isnt bad clay barring it should be rather quick and easy if it’s as you say then you have peace of mind.
__________________
07 E92 335i 6MT, MMP inlets, DCI, VRSF 7.5 competition intercooler, VRSF catless downpipes, VRSF chargepipe, 335is clutch, Vader Solutions stage 2 LPFP, MHD stage 2+, Hawk HPS 5.0 pads, R1 Concepts drilled slotted rotors, TSW Nurburgring 19x8 19x9.5
Appreciate 1
Mosaud19983921.50
      03-14-2021, 06:01 PM   #3
Mosaud1998
Colonel
Mosaud1998's Avatar
United_States
3922
Rep
2,629
Posts

Drives: 2019 BMW 540
Join Date: Nov 2019
Location: Suburb of Chicago

iTrader: (0)

Garage List
2019 BMW 540  [0.00]
Quote:
Originally Posted by Smgs1992 View Post
Feel the paint and see if its rough or if its smooth. Rough means needs to be clayed smooth should be fine. If you’d like to be careful if it isnt bad clay barring it should be rather quick and easy if it’s as you say then you have peace of mind.
I went over the paint with my hand in a sandwich back.

It feels really really lighty rough. I'll just use Iron-X or Adams iron remover.

That might help.
Appreciate 0
      03-14-2021, 07:02 PM   #4
tcphoto
Brigadier General
tcphoto's Avatar
United_States
3519
Rep
3,042
Posts

Drives: E92 335i 6MT Coupe
Join Date: Dec 2009
Location: Nashville, TN

iTrader: (1)

I think it's always good to clay bar before waxing, I wax a few times a year and it can't hurt.
__________________
Appreciate 1
Mosaud19983921.50
      03-14-2021, 07:08 PM   #5
Mosaud1998
Colonel
Mosaud1998's Avatar
United_States
3922
Rep
2,629
Posts

Drives: 2019 BMW 540
Join Date: Nov 2019
Location: Suburb of Chicago

iTrader: (0)

Garage List
2019 BMW 540  [0.00]
Quote:
Originally Posted by tcphoto View Post
I think it's always good to clay bar before waxing, I wax a few times a year and it can't hurt.
Can't claying too often run the clear coat? Or scratch the paint?
Appreciate 0
      03-14-2021, 09:00 PM   #6
tcphoto
Brigadier General
tcphoto's Avatar
United_States
3519
Rep
3,042
Posts

Drives: E92 335i 6MT Coupe
Join Date: Dec 2009
Location: Nashville, TN

iTrader: (1)

I do it maybe 3-4 times a year at the most. I haven’t heard anything about it damaging clear coat or paint. Keeping a coat of detailing spray and not overusing the clay is essential.
__________________
Appreciate 1
Mosaud19983921.50
      03-14-2021, 09:18 PM   #7
Emilime75
Colonel
1209
Rep
2,476
Posts

Drives: 2010 335i E92 LeMans Blue
Join Date: Dec 2017
Location: Merica!

iTrader: (1)

Technically you're not supposed to clay without following it up with at least a light polish, than wax.
Appreciate 1
Mosaud19983921.50
      03-14-2021, 10:12 PM   #8
Mosaud1998
Colonel
Mosaud1998's Avatar
United_States
3922
Rep
2,629
Posts

Drives: 2019 BMW 540
Join Date: Nov 2019
Location: Suburb of Chicago

iTrader: (0)

Garage List
2019 BMW 540  [0.00]
Quote:
Originally Posted by Emilime75 View Post
Technically you're not supposed to clay without following it up with at least a light polish, then wax.
I clay then apply a wax coating and on top of the wax coating I apply two coats of CMX
Appreciate 0
      03-14-2021, 10:39 PM   #9
Emilime75
Colonel
1209
Rep
2,476
Posts

Drives: 2010 335i E92 LeMans Blue
Join Date: Dec 2017
Location: Merica!

iTrader: (1)

That's kinda like spilling the CMX right down the drain, it won't bond to the wax. CMX is a "hybrid" sealant that's designed to bond to paint/clear coat. If anything, you should apply the sealant, than wax as needed to prolong the protection of said sealant. And the reason why it is generally advised to polish after a clay is because you're actually putting miniscule scratches into the clear when you do clay. There's really no reason to clay unless you're prepared to do some more work after it.
Appreciate 2
      03-14-2021, 10:54 PM   #10
Mosaud1998
Colonel
Mosaud1998's Avatar
United_States
3922
Rep
2,629
Posts

Drives: 2019 BMW 540
Join Date: Nov 2019
Location: Suburb of Chicago

iTrader: (0)

Garage List
2019 BMW 540  [0.00]
Quote:
Originally Posted by Emilime75 View Post
That's kinda like spilling the CMX right down the drain, it won't bond to the wax. CMX is a "hybrid" sealant that's designed to bond to paint/clear coat. If anything, you should apply the sealant, than wax as needed to prolong the protection of said sealant. And the reason why it is generally advised to polish after a clay is because you're actually putting miniscule scratches into the clear when you do clay. There's really no reason to clay unless you're prepared to do some more work after it.
I think I contacted mothers and they said it’s fine to use CMX on top of the wax.

I’ll double-check that way I’m not wasting the product.

Oh, wait, the wax I use has polish in it. Per the manufacture.

I use meguiars 3 in 1 wax

Last edited by Mosaud1998; 03-14-2021 at 11:04 PM..
Appreciate 0
      03-14-2021, 10:55 PM   #11
Mosaud1998
Colonel
Mosaud1998's Avatar
United_States
3922
Rep
2,629
Posts

Drives: 2019 BMW 540
Join Date: Nov 2019
Location: Suburb of Chicago

iTrader: (0)

Garage List
2019 BMW 540  [0.00]
Here it is
Attached Images
 
Appreciate 0
      03-14-2021, 11:29 PM   #12
Emilime75
Colonel
1209
Rep
2,476
Posts

Drives: 2010 335i E92 LeMans Blue
Join Date: Dec 2017
Location: Merica!

iTrader: (1)

Yes, I get what the marketing dept says about it, but consider what a ceramic coating is and what it does/how it works. I also get that CMX is one of these new fandangled "hybrid" ceramic/sealant/waxes/whatevers...so not a true ceramic coating. It's a decent product for what it is, I have a bottle of it. It's basically a longer wearing wax, and imo, if you're layering, should be used as a base and topped with traditional waxes.
Appreciate 2
      03-14-2021, 11:33 PM   #13
Mosaud1998
Colonel
Mosaud1998's Avatar
United_States
3922
Rep
2,629
Posts

Drives: 2019 BMW 540
Join Date: Nov 2019
Location: Suburb of Chicago

iTrader: (0)

Garage List
2019 BMW 540  [0.00]
Quote:
Originally Posted by Emilime75 View Post
Yes, I get what the marketing dept says about it, but consider what a ceramic coating is and what it does/how it works. I also get that CMX is one of these new fandangled "hybrid" ceramic/sealant/waxes/whatevers...so not a true ceramic coating. It's a decent product for what it is, I have a bottle of it. It's basically a longer wearing wax, and imo, if you're layering, should be used as a base and topped with traditional waxes.
Do you think meguiars 3 in 1 wax doesn’t have polish in it?

I’ll spray the ceramic coating first then apply the wax this time.
Appreciate 0
      03-15-2021, 12:14 AM   #14
Mosaud1998
Colonel
Mosaud1998's Avatar
United_States
3922
Rep
2,629
Posts

Drives: 2019 BMW 540
Join Date: Nov 2019
Location: Suburb of Chicago

iTrader: (0)

Garage List
2019 BMW 540  [0.00]
Here’s what I am thinking about doing.

1. Wash/dry car (two bucket method)
2. Inspect paint for imperfections with hand in a sandwich bag.
3. If I feel imperfections, I’ll use Adams iron remover.
4. Wash off Adams iron remover. Inspect paint with hand in a sandwich bag again.
5. If I feel imperfections still I’ll clay. If not I’ll skip step 5 and go to step 6. If I do feel imperfections, I’ll clay then go to step 6
6. Apply Mothers CMX. Let it cure for 24 hours.
7. Use detail spray to wipe the surface then add another layer of CMX. Let the second layer cure for a day.
8. Final step, use detail spray to wipe surface then apply a coating of MEG ultimate liquid wax for added protection a depth.

Last edited by Mosaud1998; 03-15-2021 at 01:13 AM..
Appreciate 0
      03-15-2021, 05:42 PM   #15
Emilime75
Colonel
1209
Rep
2,476
Posts

Drives: 2010 335i E92 LeMans Blue
Join Date: Dec 2017
Location: Merica!

iTrader: (1)

Quote:
Originally Posted by Mosaud1998 View Post
Do you think meguiars 3 in 1 wax doesn’t have polish in it?
Not sure why the question. I imagine it does have some very light abrasive in it in order to be called a polish, but consider what's happening here. The act of polishing a painted surface, like your car, involves removing a minute amount of clear coat by way of abrasion. You would typically want to remove all of this debris, in the form of fine dust, that is created by polishing, along with the polish residuebefore you apply a protective top coat, regardless if that is a wax, a ceramic coating or a hybrid of the 2. What happens to this debris and residue when the polish is also the wax? I don't doubt you get decent results doing what you're doing, but think about the steps, the products and the tools needed to do a paint correction and/or maintenance. BTW, the AutoGeek forum is a fantastic source of info and full of very helpful people if you ever want to do a deep dive into the world of paint correction and maintenance. Their store also carries anything and everything you could ever need to do this type of work.
Appreciate 1
Mosaud19983921.50
      03-20-2021, 09:04 PM   #16
Mosaud1998
Colonel
Mosaud1998's Avatar
United_States
3922
Rep
2,629
Posts

Drives: 2019 BMW 540
Join Date: Nov 2019
Location: Suburb of Chicago

iTrader: (0)

Garage List
2019 BMW 540  [0.00]
Just washed, clay bar and put one coat of mother's ceramic spray(CMX)

Wow, the silver really pops. No photoshop used

I Will put another layer of ceramic spray Sunday and a layer of liquid wax Monday for extra shine and protection.
Attached Images
Attached Images
          
Appreciate 2
      09-22-2021, 07:23 PM   #17
ctuna
Lieutenant General
1911
Rep
13,100
Posts

Drives: 325xi 06 wagon MT
Join Date: Jan 2010
Location: Santa Cruz, Ca

iTrader: (0)

If you are going through a multi step process you might as well ceramic coat
it since it's not that much more work for much longer protection.
Appreciate 2
      11-21-2021, 09:46 PM   #18
X-pertDemon
New Member
6
Rep
11
Posts

Drives: 2011 BMW 328i
Join Date: Nov 2021
Location: Los Angeles

iTrader: (0)

Turned out nice!
Appreciate 2
      02-04-2022, 11:44 PM   #19
Bimmer_Bro
Captain
Bimmer_Bro's Avatar
Canada
393
Rep
972
Posts

Drives: 2010 BMW 335xi LCI
Join Date: Dec 2019
Location: Calgary Alberta Canada

iTrader: (0)

Iv been detailing for a long time and also use to run the detail department at a bmw dealer here in town. I will give you my personal opinion on what I like to do to my own ride and family members.

Clay bar makes a huge difference (especially if it has never been clayed.) it will remove road tar, tree sap, over spray etc. prep work is everything and it will really add to the depth and shine during the end result.
Most clays are quite mild so don't worry about it damaging the paint. Just do small sections at a time and rotate/ remold the clay in your hands alot. Around wheel arches and rear of the car will be the worst. It will also take off metallic break dust that has stuck to the car and looks like tiny rust specks. Claying sucks and kills my shoulder but it worth it in the end

I have tried so many products and methods over the years. This is my favourite method at the moment...

I like to hand wash first.
Clay bar
Chemical guys vss scratch and swirl remover . This can be done by hand but much better results with a light power polishing. No need to use cutting pad just a application pad on the polisher is fine.

Next some sort of wax or top coat. I have been using chemical guys top coat with carrauba in it.

Lastly I love the hydrosilex recharge ceramic spray. This stuff is amazing and will last all winter if applied correctly. Two coats giving time to cure between coats. Leaves you with a candy coating shine that repels water and dirty like crazy.
All this sounds like a ton of work( and it is) but the results speak for themselves.
Below is my dads black s4 I did with this method. That is me and my garage ceiling you see in the reflection of the hood.
The other pic is the side of my blue water metallic 335.
Attached Images
  
__________________
Instagram : @Bimmer_bro
Appreciate 3
      02-08-2022, 10:23 AM   #20
MEN54
Lieutenant
MEN54's Avatar
236
Rep
481
Posts

Drives: 2017 BMW 330 xi
Join Date: Mar 2019
Location: New York

iTrader: (1)

Quote:
Originally Posted by Mosaud1998 View Post
I clay bar and waxed my car in November of 2020. Didn't drive the car much during the winter. Maybe once but it wasn't snowing and there was no slush on the roads.

I am thinking about waxing it next week. Should I clay bar/decontaminate the paint before I apply wax or there's no need to do all that since I didn't drive the car?

https://www.detailedimage.com/Ask-a-...se-a-clay-bar/
https://www.detailedimage.com/Auto-D...0be%20required.
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 05:49 PM.




e90post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, 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