Eastwood Extreme Chassis black - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Body - Exterior
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 04-15-2013, 03:22 PM
Registered User
 
Join Date: Mar 2013
Location: McKeesport Pa. area
Posts: 13
Wiki Edits: 0

Thanks: 1
Thanked 0 Times in 0 Posts
Eastwood Extreme Chassis black

Has anyone possibly had this problem that I have. I had an rad support sandblasted, applied 2 coats of PPG epoxy primer, and then after about 2 hrs., applied the chassis black from Eastwood. Looked great. This was about 1 week ago. I started to get all my parts in order to start assembly, and I took the air hose and blew the dust off of the support, and off came the paint. The primer on the support was good, just the paint came off, big flakes. Bad adhesion between the two for some reason. Moisture was not a problem.I use a refrigerant drier and desiccant canister. This is probably the first time I've run into the problem, looking for answers..

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 04-15-2013, 03:39 PM
Faith - Respect - Trust
 
Last photo:
Join Date: Sep 2012
Location: Ontario
Age: 58
Posts: 3,508
Wiki Edits: 0

Thanks: 192
Thanked 638 Times in 572 Posts
So, the paint came off the PPG Epoxy Primer, but the primer stayed on the Rad Support. That tells me that the Epoxy Primer wasn't flashed enough, 2 hours is a guideline. Flash times are dependent on temperature, air flow and volume (the amount of primer you put on). If it was cool, the solvents where still in the Primer, when you painted over top...the paint cured before the solvents where out of the epoxy...when they tried to release themselves, they took the paint with them. Lack of air movement will not allow the solvents to release, to much air movement will cause the primer to cure on top and not all the way through...causing the paint to come off when the solvents finally do release. Same with volume of paint. The more primer you put on, the longer your going to need to wait for it to flash and top coat.

Anyway you look at it, 90% of peeling paint is caused by trapped solvent, 9% is cause by poor mechanical adhesion (sanding), but the primer stayed on the rad support, so mechanical adhesion isn't the issue. The other 1%...it was your turn...sometimes it just happens but even then, it's probably something that happened in the painting process.

Ray
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 04-15-2013, 04:15 PM
Registered User
 
Join Date: Mar 2013
Location: McKeesport Pa. area
Posts: 13
Wiki Edits: 0

Thanks: 1
Thanked 0 Times in 0 Posts
I guess I'll try it again, then go have a few beers while the epoxy dries longer, or bake it Thanks.
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 04-15-2013, 04:23 PM
Faith - Respect - Trust
 
Last photo:
Join Date: Sep 2012
Location: Ontario
Age: 58
Posts: 3,508
Wiki Edits: 0

Thanks: 192
Thanked 638 Times in 572 Posts
No need to bake it, it's PPG's DP line correct, as crappy as that stuff is to sand, you could sand it with say 400 wet, let it sit over night and re paint it (let it sit to make sure that more solvents escape from opening up the Epoxy when you sanded it). If your going to apply more Epoxy, just let it sit longer before you topcoat it...If I'm right you have a 72 hour window before it needs to be scuffed, just make sure that it's flashed properly and hit it with your chassis Black.

Ray
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 04-15-2013, 05:33 PM
Registered User
 
Join Date: Mar 2013
Location: McKeesport Pa. area
Posts: 13
Wiki Edits: 0

Thanks: 1
Thanked 0 Times in 0 Posts
I just applied another coat of epoxy primer after I sanded it with 320 and a red scuff pad. This time I also added 2 new inner fenderwells also that I primed.I think I'll use the advise a leave them sit overnite before painting again. This is the first time that I'm using this Eastwood paint, probably different properties that the PPG that I've use for the last 25 years. Always something to learn. Thanks for the input.. Ed
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 04-15-2013, 05:41 PM
Faith - Respect - Trust
 
Last photo:
Join Date: Sep 2012
Location: Ontario
Age: 58
Posts: 3,508
Wiki Edits: 0

Thanks: 192
Thanked 638 Times in 572 Posts
Good idea Ed, you've got lots of window room for topcoating, get those solvents out and put the Eastwood Black over top. 25 years of experience, I know what you mean, I have over 30 and every once in a while I get the teeth marks in my backside.

I'm sure you'll be fine.

Good luck Ed.

Ray
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 04-15-2013, 06:37 PM
killeratrod's Avatar
Registered User
 
Last photo:
Join Date: Nov 2012
Location: Florida
Posts: 2,275
Wiki Edits: 0

Thanks: 169
Thanked 414 Times in 370 Posts
i just look up this at eastwood

About Chassis Black Paint Satin Quart


Chassis Black Satin applies smoothly over bare metal, Eastwood Rust Encapsulator, or Eastwood Chassis Black Primer. (Not for use over self-etching primers.) Quart can has 40-sq.-ft. coverage. (Also available in 14-oz. aerosol to cover up to 8 sq. ft.; see 10025Z Chassis Black.) Withstands temperatures up to 300 degreesF. 30-day Eastwood warranty.
Reply With Quote Quick reply to this message
The Following User Says Thank You to killeratrod For This Useful Post:
69 widetrack (04-15-2013)
  #8 (permalink)  
Old 04-15-2013, 07:30 PM
Faith - Respect - Trust
 
Last photo:
Join Date: Sep 2012
Location: Ontario
Age: 58
Posts: 3,508
Wiki Edits: 0

Thanks: 192
Thanked 638 Times in 572 Posts
Quote:
Originally Posted by killeratrod View Post
i just look up this at eastwood

About Chassis Black Paint Satin Quart


Chassis Black Satin applies smoothly over bare metal, Eastwood Rust Encapsulator, or Eastwood Chassis Black Primer. (Not for use over self-etching primers.) Quart can has 40-sq.-ft. coverage. (Also available in 14-oz. aerosol to cover up to 8 sq. ft.; see 10025Z Chassis Black.) Withstands temperatures up to 300 degreesF. 30-day Eastwood warranty.
Thanks "killeratrod"...there you go Ed, there's that 1% that I was talking about...it's to go over bare metal, not Epoxy Primer.

Maybe just paint the rad support black tomorrow and use the Eastwood product over bare metal.

Thanks again Killeratrod....makes sense now.

Ray
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 04-16-2013, 04:28 AM
Registered User
 
Join Date: Mar 2013
Location: McKeesport Pa. area
Posts: 13
Wiki Edits: 0

Thanks: 1
Thanked 0 Times in 0 Posts
well since I already applied the epoxy primer last night, I'll take a chance and scuff the items good,spray a thin sealer coat of NCP 271 primer to cover the epoxy, then go with the chassis black. Maybe this will work.Don't know.

Just read in Eastwoods catalog that the "ultimate finish is easily achieved when you apply Eastwood's Epoxy Primer under the Ceramic Chassis Black", but there is no statement of any kind about the Extreme Chassis Black and epoxy primers. They reference Epoxy Primer for their 2K Chassis black, but nothing for their Original or Extreme black's. My error in not reading closer.

Last edited by Ed M.; 04-16-2013 at 04:46 AM.
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 04-16-2013, 07:51 AM
Faith - Respect - Trust
 
Last photo:
Join Date: Sep 2012
Location: Ontario
Age: 58
Posts: 3,508
Wiki Edits: 0

Thanks: 192
Thanked 638 Times in 572 Posts
Mine too, if i'm not familiar with a product I usually check it out before I offer advice, but, Anything should stick to Epoxy if it's flashed properly right...wrong...my bad as well for not following through. Why not just put a regular catalyzed black on, that way you know it's going to stick.

Ray
Reply With Quote Quick reply to this message
  #11 (permalink)  
Old 04-16-2013, 08:42 AM
Registered User
 
Join Date: Mar 2013
Location: McKeesport Pa. area
Posts: 13
Wiki Edits: 0

Thanks: 1
Thanked 0 Times in 0 Posts
As they say, if all else fails, read the instructions. But as luck has it, a Eastwood rep just call me back and said that epoxy primer is acceptable base for their chassis black paints. Just have to leave enough dry time for the solvents to flask out of the primer, 2 or 3 days if possible , then scuff and primer. Well, I left about 10 hrs. from the time I applied the primer to the paint time. See what happens in a few days. Will update .
I wanted to use something that was more resistant to under the hood chemicals, fluids. Ed
Reply With Quote Quick reply to this message
  #12 (permalink)  
Old 04-16-2013, 08:46 AM
Faith - Respect - Trust
 
Last photo:
Join Date: Sep 2012
Location: Ontario
Age: 58
Posts: 3,508
Wiki Edits: 0

Thanks: 192
Thanked 638 Times in 572 Posts
So, he's basically telling you exactly what I told you in one of my previous posts. Well, let it set up, I don't understand why you would need to scuff Epoxy but give it a try...and let us know what happens.

Best of Luck Ed

Ray
Reply With Quote Quick reply to this message
  #13 (permalink)  
Old 04-16-2013, 09:08 PM
Registered User
 
Last photo:
Join Date: Feb 2011
Location: Kalamazoo, MI
Posts: 1,154
Wiki Edits: 0

Thanks: 63
Thanked 104 Times in 88 Posts
Quote:
Originally Posted by 69 widetrack View Post
Thanks "killeratrod"...there you go Ed, there's that 1% that I was talking about...it's to go over bare metal, not Epoxy Primer.

Maybe just paint the rad support black tomorrow and use the Eastwood product over bare metal.

Thanks again Killeratrod....makes sense now.

Ray
I don't see where it says no epoxy...only no self-etching primers. And Epoxy is not a self etching primer just because it can go on bare metal.
Reply With Quote Quick reply to this message
  #14 (permalink)  
Old 04-17-2013, 05:29 AM
Registered User
 
Join Date: Mar 2013
Location: McKeesport Pa. area
Posts: 13
Wiki Edits: 0

Thanks: 1
Thanked 0 Times in 0 Posts
Sprayed the items yesterday. came out nice ,a little more shine than the 85 percent that I was expecting from what I wanted. In a couple of days I'll give it the air blow test, see what happens. Thanks for all the input that everyone had given me on this. There's something new learned everyday in painting.
Reply With Quote Quick reply to this message
  #15 (permalink)  
Old 04-17-2013, 06:43 AM
Registered User
 

Last journal entry: 50 Ply wagon
Last photo:
Join Date: Oct 2008
Location: Pottstown,Pa
Posts: 633
Wiki Edits: 0

Thanks: 0
Thanked 31 Times in 30 Posts
I have used the Eastwood Chassis Black Satin on the whole underneath my car. I also use to spray all the components on my chassis and other parts like brackets.
About etching primer............my understanding is that is to be used over bare metal only. That way it can "etch" the metal for a topcoat.
I have found that if you "etch" any bare metal with a good sanding and apply a coat of good primer you are good to go.
Reply With Quote Quick reply to this message

Recent Body - Exterior posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may 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
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Eastwood 2K Ceramic Chassis Black spchiv Body - Exterior 8 04-07-2013 06:02 AM
chassis black lowdak28 Body - Exterior 3 09-03-2009 10:29 AM
Eastwoods Extreme Chassis Black Steve Waller Body - Exterior 4 03-21-2009 06:24 PM
eastwood's chassis paint:drying problems ? Slickriffs Body - Exterior 19 11-21-2007 09:21 PM
Chassis Black jakejake1966 Body - Exterior 1 04-11-2006 08:32 PM


All times are GMT -6. The time now is 02:39 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.