| Author |
Message |
    
TomR
Citizen
Username: Tomr
Post Number: 968
Registered: 6-2001
| | Posted on Monday, February 6, 2006 - 3:51 pm: | 
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I know the basic rules about not applying an oil based finish coat over a latex primer; and that you can apply a latex finish coat over an oil primer.
But...
Can I use an oil primer over an old latex finish coat, and then do the new latex finish coat.
Before anybody asks, I have several gallons of oil primer on hand already.
Thanks for any help.
TomR |
Fabulouswalls
Citizen
Username: Fabulouswalls
Post Number: 15
Registered: 10-2005
| | Posted on Monday, February 6, 2006 - 8:01 pm: |
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Did you read the label on the can? |
The Soulfullest Mr T
Citizen
Username: Howardt
Post Number: 1401
Registered: 11-2004
| | Posted on Monday, February 6, 2006 - 8:15 pm: |
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How old and how solid is the base latex paint? If it's very solid, i.e., "one" with the [wood?] surface and not likely to come off with the addition of an oil primer, I'd say go for it. But if the base coat is at all "iffy," (a paint industry term), then I'd prolly go with a latex primer. |
Smarty Jones
Citizen
Username: Birdstone
Post Number: 327
Registered: 10-2005
| | Posted on Tuesday, February 7, 2006 - 8:46 am: |
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This is from 10+ years of painting experience....
Your Latex finish coat will adhere just fine to your Oil Base primer. There are still some old-school contractors who ONLY prime with oil base primer, and then put a Latex finish coat down.
Regarding the question about putting the old primer on the Latex Finish coat, it will stick, but I have to ask why? Are you trying to restrict some bleeding/staining? If not, primer is unnecessary.
A latex finish coat will adhere PERFECTLY to an old latex finish coat...primer will just add unneccessarly to the layers. Remember what a primers two goals are:
1. Allow paint to adhere to bare wood. (NOT to old layers of paint)
2. Lock in stains or cedar bleeding. |
TomR
Citizen
Username: Tomr
Post Number: 971
Registered: 6-2001
| | Posted on Tuesday, February 7, 2006 - 11:36 am: |
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Smarty,
Thanks. I'm going to prime the walls to cover some water staining from a former leak.
TomR |
Case
Citizen
Username: Case
Post Number: 1075
Registered: 2-2005
| | Posted on Tuesday, February 7, 2006 - 12:16 pm: |
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I've always been a big fan of oil based primer (I did the outside of my house with it last year), but from what I can tell the Oil paints and primers have changed a lot... for environmental reasons, they're not as strong as they used to be.
Since you've got the primer laying around, go nuts... but personally, I use the top quality latex primer these days. |
Jason
Citizen
Username: Jason
Post Number: 58
Registered: 3-2004
| | Posted on Tuesday, February 7, 2006 - 3:05 pm: |
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You may also want to take a look at Zinsser BIN - this is a shellac-based primer that is great at sealing in stains, and works well with latex paint. I used it to prime the stripped walls of one of our bedrooms that previously had wallpaper - worked a treat.
http://www.zinsser.com/product_detail.asp?ProductID=10 |
Jason
Citizen
Username: Jason
Post Number: 59
Registered: 3-2004
| | Posted on Tuesday, February 7, 2006 - 3:06 pm: |
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... just one thing - if you do use BIN, make sure that you have a good face mask, as the smell while it is wet is pretty potent. |
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