How long can primer be left... - Ford Truck Enthusiasts Forums

How long can primer be left...

Thread Tools Search this Thread
Old 05-26-2014, 07:10 PM
Snipeston's Avatar
Snipeston Snipeston is offline
Junior User
Thread Starter
Join Date: Jul 2008
Posts: 89
Snipeston is starting off with a positive reputation.
How long can primer be left...

How long can primer be left without top coating? I need to do some rust repair on my 1995 F150 but plan on doing it in stages over the next 6-12 months. What primer would hold up best for this type of schedule.
Reply With Quote
Old 05-26-2014, 08:47 PM
f100beatertruck's Avatar
f100beatertruck f100beatertruck is offline
Posting Guru
Join Date: Apr 2003
Location: Parkesburg PA
Posts: 2,404
f100beatertruck has a very good reputation on FTE.f100beatertruck has a very good reputation on FTE.f100beatertruck has a very good reputation on FTE.f100beatertruck has a very good reputation on FTE.
Epoxy primer. You can leave it for years. They way that I do it is use it for a base over the metal after you've done your metal work. Then do your bondo and high fill primer and block it out. After you're happy with it top it with another coat of epoxy. You can also do your metal work, hit it with epoxy then come back later with bondo / high fill. If it's more than 5 days or so you need to scuff it and shoot another coat before painting anything else over it.

Southern Polyurethanes Home - Here's the stuff I use now. Their black primer has a UV inhibitor in it to last longer because so many people use it as a top coat. I used to use PPG Omni.

They also have a forum for all your paint questions.

As for high fill, lots of people like 2k, but I prefer a 1k. It doesn't dry as fast but they both build nice and the 1k lasts longer on the shelf. For a production shop I'd use 2k but for home and project use 1k. Just my preference.
Reply With Quote
Old 07-02-2014, 08:48 PM
postmortum postmortum is offline
Freshman User
Join Date: Apr 2011
Location: Glendale, Az
Posts: 35
postmortum is gaining momentum as a positive member of FTE.
I would agree Epoxy is the only primer to use if you plan on it sitting. I would go over that with a 2k after the body work, Epoxy is really hard to sand and has a low film build. A note tho with Epoxy you can't use any type of acid etch and make sure the metal is very clean before application. Epoxy is more sensitive to clean prep work
Reply With Quote
Old 07-04-2014, 05:53 PM
vtpkrat2 vtpkrat2 is offline
Senior User
Join Date: Jun 2014
Location: Vermont
Posts: 310
vtpkrat2 is starting off with a positive reputation.
I have used 2 stage epoxy primers (primer & hardner= 2 stage) in my body shop since they became available years and years ago.It sands EASILY and will withstand not being topcoated for a long period of time as opposed to single stage primer which is succeptable to attracting moisture as it sits. Do not go cheap on this layer as all the other coats of whatever are only as good as the weakest link. Good luck!
Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
Primers, etc jvmcc Paint & Bodywork 6 08-29-2013 08:31 PM
Priming and original coatings john fin Paint & Bodywork 4 12-06-2008 05:09 PM
primer quanity muxdog83 Paint & Bodywork 3 07-13-2007 12:30 PM
Good rattle can sealer? jwtaylor Paint & Bodywork 4 06-11-2004 03:15 PM
sanding the body my79f Paint & Bodywork 16 09-27-2003 04:42 PM

Go Back   Ford Truck Enthusiasts Forums >

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

All times are GMT -5. The time now is 06:39 PM.