ZPOST
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   ZPOST > BMW Z4 Technical Talk > Cosmetics Modification (Exterior/Interior) Discussions
  TireRack

SUPPORT ZPOST BY DOING YOUR TIRERACK SHOPPING FROM THIS BANNER, THANKS!
Post Reply
 
Thread Tools Search this Thread
      04-10-2019, 12:34 PM   #1
SwissArmy
Why so serious?
SwissArmy's Avatar
Canada
92
Rep
654
Posts

Drives: 2004 BMW z4 3.0i SMG
Join Date: Dec 2012
Location: Toronto

iTrader: (1)

Today I've learned: Do not powdercoat your interior metal trim

Photos below

I'm a moron lol

So, long story short, I never really liked the aluminum dash trim in my Z4. It kinda felt out of place. I wrapped all the pieces many times but I was never happy.

I finally got someone to paint all the pieces in piano black. It looked AMAZING!!!!....for a week.

Piano gloss black is super soft and a light swipe with a cloth can leave light scratches. I am currently rebuilding the entire car and I wanted to powdercoat the dash and console trim pieces in satin black. And some other pieces of the car to be powdercoated as well.

I dropped them off at the powdercoaters. Center console trim went well. The small piece on the left hand side came out great. The main dash...ohhhh boy did it not.

It looked all dented and warped. Tons of bubbling and high spots. I assumed (silly me) that it was one solid piece. I do not blame the powdercoater as it does really look like one solid piece. But, nope. It is a thin piece of aluminum that has been glued on top of the main cast aluminum dash panel. Which makes sense now...

During baking, the glue softened, and the top layer started to separate and warped due to the trapped hot air and glue underneath. The result was ABYSMAL!!

So, I decided to peel away the top skin, which reveals a LOT of hard glue similar to PL Premium. Sent it back to the powdercoater who will sandblast all that off and powdercoat the actual base panel (free of charge, only because he is so awesome and he realized how big of a goof I am).

If this fails, I will have to buy a new main dash panel and have it painted to match the rest.

I got lucky that the other two pieces that were powdercoated were not negatively affected.

TLDR; do not powdercoat your interior metal trim pieces unless you remove the top layer.

Here are photos for your viewing horror. I will update this post with the final product when it's ready.






Last edited by SwissArmy; 04-10-2019 at 12:41 PM..
Appreciate 2
      04-10-2019, 07:03 PM   #2
WickedNy
Get Some
WickedNy's Avatar
United_States
140
Rep
615
Posts

Drives: 07 Z4 3.0si
Join Date: Jan 2012
Location: Long Island

iTrader: (1)

Appreciate 0
      04-10-2019, 10:33 PM   #3
SwissArmy
Why so serious?
SwissArmy's Avatar
Canada
92
Rep
654
Posts

Drives: 2004 BMW z4 3.0i SMG
Join Date: Dec 2012
Location: Toronto

iTrader: (1)

Quote:
Originally Posted by WickedNy View Post
Yep. lol

Good thing these dashes are not that expensive, if it does not work out
Appreciate 1
      04-11-2019, 04:06 AM   #4
WickedNy
Get Some
WickedNy's Avatar
United_States
140
Rep
615
Posts

Drives: 07 Z4 3.0si
Join Date: Jan 2012
Location: Long Island

iTrader: (1)

Out of curiosity… Why not have it painted through body shop, They still have to bake it in a booth but the temperature is not as hot as a powder coating
Appreciate 0
      04-11-2019, 04:19 AM   #5
GuidoK
#buildnotbought
GuidoK's Avatar
1280
Rep
2,339
Posts

Drives: Z4 3.0i ESS TS2+
Join Date: Jul 2012
Location: Tinkering in the garage

iTrader: (0)

Quote:
Originally Posted by SwissArmy View Post
Yep. lol

Good thing these dashes are not that expensive, if it does not work out
the large dashpiece starts at €350 depending on trim finish (in europe). New at a dealer
I think thats quite expensive for a bit of trim.

2nd hand is the way to go.
__________________
Z4 3.0i | ESS TS2+ | Quaife ATB LSD | Brembo/BMW performance BBK front/rear | Schrick FI cams | Schmiedmann headers+cats | Powerflex/strongflex PU bushings | Vibra-technics engine mounts | H&R anti rollbars | KW V3 coilovers | Sachs performance clutch
Appreciate 0
      04-11-2019, 07:53 AM   #6
SwissArmy
Why so serious?
SwissArmy's Avatar
Canada
92
Rep
654
Posts

Drives: 2004 BMW z4 3.0i SMG
Join Date: Dec 2012
Location: Toronto

iTrader: (1)

Quote:
Originally Posted by WickedNy View Post
Out of curiosity… Why not have it painted through body shop, They still have to bake it in a booth but the temperature is not as hot as a powder coating
I did have it painted before in gloss. I was going to get it painted again in satin, but since I assumed it was completely metal, and the price of powdercoating was the same as a paint job, I opted to powdercoat. Harder and more durable than paint.

Quote:
Originally Posted by GuidoK View Post
the large dashpiece starts at €350 depending on trim finish (in europe). New at a dealer
I think thats quite expensive for a bit of trim.

2nd hand is the way to go.
100% I will be going 2nd hand if it does not turn out great
Appreciate 0
      04-11-2019, 11:40 AM   #7
dbarton62
Lieutenant Colonel
Canada
436
Rep
1,791
Posts

Drives: 04ZR 3.0 6 speed VF SC
Join Date: Feb 2013
Location: Kitchener Ontario Canada

iTrader: (2)

I have had my aluminum trim powder coated for 3 years now. Looks as good as the day I had it done.
I tend to think the oven was too hot for the glue on the veneer.
__________________
Intercooled Vortech V3Si, custom ducting, 3.25 pulley, multi port WMI, Severn Tuning(pokeybritches), Tial BPV,Ceramic header, magnaflow section 1, SS race muffler, megan mounts,42 design catch can, CDV delete ,custom strut bar,3.64LSD, H&R bars, Hotchkis links.ST coils,Koni Yellows. Megan camber arms. Carbon interior, CF Aero.APEX
Appreciate 0
      04-11-2019, 05:56 PM   #8
SwissArmy
Why so serious?
SwissArmy's Avatar
Canada
92
Rep
654
Posts

Drives: 2004 BMW z4 3.0i SMG
Join Date: Dec 2012
Location: Toronto

iTrader: (1)

Quote:
Originally Posted by dbarton62 View Post
I have had my aluminum trim powder coated for 3 years now. Looks as good as the day I had it done.
I tend to think the oven was too hot for the glue on the veneer.
Agreed. The other panels came out mint. Oh well. Lesson learned
Appreciate 0
      04-17-2019, 08:51 PM   #9
KevinC
your average JAMF
KevinC's Avatar
United_States
292
Rep
1,959
Posts

Drives: '08 Z4MC, '16 Golf R
Join Date: Oct 2005
Location: Hereford, AZ

iTrader: (0)

Garage List
Find a set of OEM carbon leather trim pieces from a boneyard and be done with it. The stuff looks amazing and is completely bulletproof. Looks brand new a decade later with zero-to-little maintenance, and doesn't show dust like Piano Black does. I have PB in my Golf R and I hate it with a passion.
__________________
'08 Z4M Coupé LM08602
'16 Golf R
Appreciate 0
      04-19-2019, 01:51 PM   #10
rsutoratosu
Lieutenant
21
Rep
433
Posts

Drives: Z4 3.0i
Join Date: Mar 2011
Location: Chicago, IL

iTrader: (0)

holy cow.. any good tips on removing them ? thanks
__________________
-Roranji
Appreciate 0
      06-27-2019, 12:08 PM   #11
ONEZ4
Registered
0
Rep
2
Posts

Drives: BMW Z4 M40i
Join Date: Jun 2019
Location: Toronto, ON

iTrader: (0)

get it wrapped and ceramic coated. That might be better than powder coating or just wrapping. And there are certain type of vinyl wraps that are stronger than another (scratch wise).
Appreciate 0
Post 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 05:20 PM.




zpost
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, 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