Go Back  DoItYourself.com Community Forums > Interior Improvement Center > Patching and Plastering
Reload this Page >

Prime Joint Compound Repair before paint??

Prime Joint Compound Repair before paint??


Old 07-13-20, 11:05 AM
Thread Starter
Join Date: Jul 2020
Posts: 2
Received 0 Votes on 0 Posts
Prime Joint Compound Repair before paint??

I have a small area I'm repairing with pre-mix joint compound. Is it necessary for me to prime the J/C area before I paint? Is 24 hours enough time to let dry before painting? Thank you!
Sponsored Links
Old 07-13-20, 12:47 PM
Group Moderator
Join Date: Mar 2003
Location: NC, USA
Posts: 23,054
Received 533 Votes on 490 Posts
Sheetrock mud is very porous. Priming first will give your paint a more uniform finish. Do all your mud work and prime the repair area. Then top coat with paint to match the room.
Old 07-13-20, 12:49 PM
Group Moderator
Join Date: Oct 2004
Location: WI/MN
Posts: 19,562
Received 94 Votes on 83 Posts

While you didn't ask, keep in mind most paints will make defects in your repair more obvious, not less so. It can help to assess the look with just primer on the spot to determine if more work is needed.
Old 07-13-20, 03:15 PM
Thread Starter
Join Date: Jul 2020
Posts: 2
Received 0 Votes on 0 Posts
Thumbs up Thank you!

Thank you! Appreciate your advice.

Old 07-13-20, 03:20 PM
Marq1's Avatar
Join Date: Sep 2016
Location: USA MI
Posts: 6,127
Received 320 Votes on 300 Posts
The other think to remember, your sanded repair is now very flat and smooth, if you dont put down 2-3 coats of primer using a heavy nap roller and blending it out onto the non repaired area when painted it will stand out like a sore thumb!
Old 07-14-20, 03:02 AM
Forum Topic Moderator
Join Date: Mar 2005
Location: USA - N.E.Tn
Posts: 47,348
Received 270 Votes on 239 Posts
I often use thinned down joint compound to mimic multiple coats of rolled on paint - it's faster.
Repairs should always be primed! While a dedicated primer is best, if the repairs are minor it's ok to spot prime with your finish paint.

You want the j/c to be dry enough to sand before priming. The primer is usually dry enough to top coat within a few hours.
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

Thread Tools
Search this Thread
Ask a Question
Question Title:
Your question will be posted in: