New paint is chipping off - 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 01-31-2005, 06:33 PM
Arrowhead's Avatar
EFI Rules and Carbs Drool
 
Last wiki edit: The FREE T Bucket plans
Last journal entry: Sold Everything for a new project
Last photo:
Join Date: Jul 2004
Location: Stillwater, NY
Age: 49
Posts: 913
Wiki Edits: 5

Thanks: 0
Thanked 4 Times in 3 Posts
New paint is chipping off

I'm in process of building a T-Bucket and I've painted the chassis parts with Omni epoxy, PPG base coat and PPG clearcoat. I've been very carefull, but there are about 1/2 a dozen spots where I sligthly tapped the finish with a wrench or other metal part and a bb sized chip falls off. It seems to chip down to the primer. Some parts have been painted for over a month, and some only a couple of days, doesn't seem to matter.

I tried to follow all the instuctions properly concerning flash times and such. The PPG rep told me that I didn't have to scuff between coats if I followed the reccomended time frames. I did scuff up some parts just to be sure and I still found some spots that chipped off anyway. The only thing I can think of is it was too cold when I painted or there is not enough clear to hold everything together. I know there is not much I can do about it now except repair when they show up (which will be extensive when it gets on the road), but I want to prevent it from happening on the body when I start on it. Any ideas? Thanks

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 01-31-2005, 07:05 PM
poncho62's Avatar
Out of the Loop Moderator
 
Last wiki edit: Streetbeasts links
Last journal entry: at car show
Last photo:
Join Date: Oct 2003
Location: Hanover, Ontario, Canada
Age: 62
Posts: 16,898
Wiki Edits: 5

Thanks: 20
Thanked 260 Times in 213 Posts
Paint is too brittle.......did you go overboard on the catalyst because of the cold.
__________________
Ontario Rodders

Budget RVs
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 01-31-2005, 07:10 PM
Arrowhead's Avatar
EFI Rules and Carbs Drool
 
Last wiki edit: The FREE T Bucket plans
Last journal entry: Sold Everything for a new project
Last photo:
Join Date: Jul 2004
Location: Stillwater, NY
Age: 49
Posts: 913
Wiki Edits: 5

Thanks: 0
Thanked 4 Times in 3 Posts
I don't think so, but they did give me low temp catalyst for the clear, but the base coat just used reducer.
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 01-31-2005, 07:25 PM
Member
 
Last photo:
Join Date: Apr 2004
Location: Georgia
Posts: 3,578
Wiki Edits: 0

Thanks: 10
Thanked 61 Times in 39 Posts
It may be nothing to worry about?
Its been cold and unless that car has been in a heated garage day and night may not be set up good.
100 things can cause your problem, but hope for best
and hope its just lack of heat?
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 01-31-2005, 08:01 PM
MARTINSR's Avatar
Brian Martin,Freelance adviser
 
Last photo:
Join Date: Jun 2004
Location: San francisco bay area
Age: 55
Posts: 13,201
Wiki Edits: 0

Thanks: 1,336
Thanked 1,167 Times in 1,029 Posts
Is there primer on the backs of the chips?
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 02-01-2005, 06:56 AM
Arrowhead's Avatar
EFI Rules and Carbs Drool
 
Last wiki edit: The FREE T Bucket plans
Last journal entry: Sold Everything for a new project
Last photo:
Join Date: Jul 2004
Location: Stillwater, NY
Age: 49
Posts: 913
Wiki Edits: 5

Thanks: 0
Thanked 4 Times in 3 Posts
From what I can tell, it's the base coat flaking off the primer. I haven't actually examined the backside of a chip, but he primer seems intact where the chip came off.
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 02-01-2005, 07:52 AM
MARTINSR's Avatar
Brian Martin,Freelance adviser
 
Last photo:
Join Date: Jun 2004
Location: San francisco bay area
Age: 55
Posts: 13,201
Wiki Edits: 0

Thanks: 1,336
Thanked 1,167 Times in 1,029 Posts
Well, of course we all hope it is the temp and when the paint fully "kicks" it's chip resistance it will improve . But I have to wonder about that primer. If you added some solvent to help it flow out, it could have still been trapped it it when you applied the base. Or, on the other end, if you let it set too long and didn't give it a good scuff before the base.
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



All times are GMT -6. The time now is 06:38 PM.


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.