High build vs epoxy primers - 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
lost password?   |   register now

LinkBack Thread Tools
  #1 (permalink)  
Old 04-17-2011, 10:58 AM
1990_LX's Avatar
Registered User
Join Date: Apr 2011
Location: Clifton Park, NY
Posts: 2
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
High build vs epoxy primers

Well here's the deal. MY fox was sanded down so that there was a lot of bare metal spots showing. I was told that a 2k high build primer would work for me(it is great and fills in A LOT) so that's what I got. I'm getting some light surface rust under the primer in a couple of spots and now people are telling me that I should have gotten an epoxy primer. I don't drive the car in primer and it hasn't been outside in any kind of rain or snow, so maybe the primer was just really thin in those spots? Did I really screw it up? Should I get some epoxy primer and just put it over the top of the 2k that's on it now or would a primer sealer over the 2k suffice?

Reply With Quote Quick reply to this message
Sponsored Links
  #2 (permalink)  
Old 04-17-2011, 11:30 AM
put up or shut up

Last journal entry: saying goodbye to the beast
Last photo:
Join Date: Apr 2011
Location: Antelope, Ca
Posts: 2,909
Wiki Edits: 0

Thanks: 1,070
Thanked 596 Times in 485 Posts
you must have primed over rust to begin with unless it was sitting outside but that doesn't sound like the case. Sounds like you just primed over rust. I'd strip it and ensure the surface rust is completely gone. Then I'd either hit it with a 2k, or epoxy and let it semi cure and THEN 2k it. Epoxy is more dense and sticks better. It holds out rust for longer and provides the best adhesion to bare metal you can get. Just not fun sanding it but it provides a great cross link cure with a 2k and so you don't necessarily have to sand on it.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 04-17-2011, 12:26 PM
mitmaks's Avatar

Last journal entry: Grille
Last photo:
Join Date: Sep 2002
Location: Washington
Age: 34
Posts: 1,626
Wiki Edits: 0

Thanks: 13
Thanked 10 Times in 10 Posts
Sand it all down to bare metal. Get yourself a gallon of epoxy, shoot it over bare metal and then you can do your bodywork/2K Hi-Build primer over it.
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 04-18-2011, 07:26 AM
Old Fool's Avatar
Registered User
Last photo:
Join Date: Jan 2008
Location: spokane,wa.
Posts: 1,365
Wiki Edits: 0

Thanks: 8
Thanked 42 Times in 36 Posts
Use SPI epoxy and it will sand much easier than mot other epoxys
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 04-18-2011, 07:36 AM
302 Z28's Avatar  
Last photo:
Join Date: May 2003
Location: North Texas
Posts: 10,940
Wiki Edits: 0

Thanks: 1
Thanked 119 Times in 100 Posts
Originally Posted by Old Fool
Use SPI epoxy and it will sand much easier than mot other epoxys

Then apply your 2K over the epoxy. Any areas where you sand through to bare metal should be spot primed with epoxy.

Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 04-18-2011, 07:56 AM
shine's Avatar
SPI Thug

Last journal entry: some progress
Last photo:
Join Date: Sep 2004
Location: bluff dale texas
Posts: 3,194
Wiki Edits: 0

Thanks: 10
Thanked 576 Times in 420 Posts
many 2k urethane primers will soak up water like a sponge. main reason i stopped using them. if you need fill go to one of the evercoat poly high builds.
Reply With Quote Quick reply to this message

Recent Body - Exterior posts with photos

Quick Reply

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:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Please select your insurance company (Optional)


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
for the money whats the best epoxy primer and the best 2k high build prime fnelson71 Body - Exterior 12 10-04-2009 05:32 AM
SPI epoxy as high build primer? BadHabitSS Body - Exterior 10 07-27-2009 07:24 AM
Epoxy primers ScotY Body - Exterior 30 09-25-2008 07:46 AM
Spraying 2k Epoxy High Build Primer Bucket Man 23 Body - Exterior 7 07-12-2008 01:25 AM
high build primer over epoxy jcarter Body - Exterior 3 02-28-2005 10:59 AM

All times are GMT -6. The time now is 02:44 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.