Question About Flame Treating? - 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 10-25-2010, 05:19 PM
FRANKBULLITT's Avatar
Registered User
 
Last photo:
Join Date: Feb 2006
Location: DETROIT MICHIGAN
Posts: 80
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Question About Flame Treating?

I am repairing a pp plastic bumper and the evercoat poly-flex filler says to flame treat the pp plastic before to promote adhesion.Never did this before.Whats it mean and how do you do it.I always just put on spray adesion promoter . Is it better to flame treat?

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 10-26-2010, 12:20 PM
crashtech's Avatar
Technician
 
Last wiki edit: Epoxy primer
Join Date: May 2005
Location: Idaho
Posts: 701
Wiki Edits: 17

Thanks: 0
Thanked 0 Times in 0 Posts
I've never done it. What we have done here is use adhesion promoter, then epoxy primer. Polyflex can then be applied on top of the epoxy primer.

More typically we will use a dedicated semi-rigid repair material that is designed for use with conventional adhesion promoters.

I think flame treating is stupid.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 10-26-2010, 05:09 PM
FRANKBULLITT's Avatar
Registered User
 
Last photo:
Join Date: Feb 2006
Location: DETROIT MICHIGAN
Posts: 80
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I contacted evercoat this afternoon an talked to their tech person.They stated flame treating is done by heating up the damaged area before applying the filler.This is done to remove the impurity of the substurate i.e. PP
and promote bonding which cant be done to PP with spray adhesion promoter.So to do this the stated use a light flame from a propane torch or butane lighter over the area.I tried it on a test bumper.1 the old way with adhesion promoter.2 flame treating on the other. Let them both dry for several hours.Then tried to bend and peel back.The test results show they were right.The flame treated piece wouldnt come loose.The chemical treated piece peeled back. Conclusion for repairs on EFDM TPO PP and other promblem plastics best to flame treat.I have implemented this procedure in the shop now, to insure better repairs.I quess you never stop learning with these high tech plastics, which are around us everyday now.
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 10-27-2010, 02:43 PM
crashtech's Avatar
Technician
 
Last wiki edit: Epoxy primer
Join Date: May 2005
Location: Idaho
Posts: 701
Wiki Edits: 17

Thanks: 0
Thanked 0 Times in 0 Posts
So your test shows adhesion promoters don't work with polyflex, which was already known. I want to reiterate that I did not nor would I recommend this be done.

I wonder if flame treating also produces satisfactory results with epoxy based fillers made for semi-rigid plastic. There might be a material savings to be realized there.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 11-01-2010, 05:43 AM
deadbodyman's Avatar
Registered User
 
Last wiki edit: Stripping paint Last photo:
Join Date: Feb 2009
Location: augusta,ga.
Age: 53
Posts: 6,033
Wiki Edits: 11

Thanks: 23
Thanked 432 Times in 363 Posts
I was wondering about that process Frank ,Thanks for the heads up..
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
question about a previouse question elrod1030 Engine 6 03-10-2010 07:35 AM
Ignotion Set-ups Native Gearhead Engine 8 11-29-2003 01:20 PM
Hi All I just Joined, Questions Re:454 rebuild Gay-Shark Engine 8 11-29-2003 10:25 AM
Unique Flames Question way_2fast_4u Body - Exterior 5 06-04-2003 03:13 AM
another flame question Conner Body - Exterior 5 03-01-2002 03:26 PM


All times are GMT -6. The time now is 07:44 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.