Safe to paint over old plywood?

Reply

  #1  
Old 10-05-16, 07:07 AM
Member
Thread Starter
Join Date: Aug 2016
Location: United States
Posts: 23
Safe to paint over old plywood?

The ply is at least 40 years old. It has been on the walls and floors of a structure, unpainted, since it was built in the 1960s or 70s. I vaguely know that outgassing is a thing, and I know plywood used to be made with not very health-inducing glues, but I don't know if painting over this stuff with a latex interior primer/paint-in-one is going to create an environment that will instantly kill all life in the room, or if the advanced age of the ply makes it safe to paint on, and I can remove my biohazard suit, which is itchy.
 
Sponsored Links
  #2  
Old 10-05-16, 07:20 AM
Group Moderator
Join Date: Oct 2004
Location: WI/MN
Posts: 18,651
This is on the inside of the building? If so, just to be safe, I'd hit it with an oil based primer first and then a couple coats of quality latex paint (no all-in-one products). I purchase paints and primers from paint stores, not paint departments.

Hang tight to see if Mark disagrees with my plan.
 
  #3  
Old 10-05-16, 08:01 AM
Member
Join Date: Jan 2011
Location: USA
Posts: 4,185
Total waste of time worrying about it.
Any off gassing if there was any is gone long ago.
If the unseal plywood has not sealed anyone yet it's not going to.
Make sure you have plenty of venting if you go with oil based primer.
I'd be more concerned with the effects of that then the plywood.
 
  #4  
Old 10-05-16, 08:32 AM
Member
Thread Starter
Join Date: Aug 2016
Location: United States
Posts: 23
Dude if worrying is a waste of time then my entire life has been a waste of time.

Thanks for the advice about the ply. Makes sense to me and I appreciate the reassurance.
 
  #5  
Old 10-05-16, 09:20 AM
ray2047's Avatar
Group Moderator
Join Date: Mar 2006
Location: USA
Posts: 32,944
Out gassing is normally associated with particle board not plywood. Which do you really have?
 
  #6  
Old 10-05-16, 09:34 AM
Forum Topic Moderator
Join Date: Mar 2005
Location: USA
Posts: 43,809
I'd second the use of an oil base primer as it will adhere better than latex primer along with sealing any stains.
 
Reply

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
Display Modes