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Old 03-07-2011, 09:49 PM   #1
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Latex over oil based paint?


I need to paint a small wall for my dad in his bathroom.

Presently, there is oil based paint and I would like to put a water based paint. Is it enough to sand the wall and then apply the latex paint?
Or is it necessary to prime and then paint?

I do not want to use oil as I cannot stand the smell.

Thanks.

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Old 03-07-2011, 10:18 PM   #2
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Latex over oil based paint?


i would sand/prime then paint it ..................use a latex primer if your bothered by the smell of oil products

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Old 03-08-2011, 06:19 AM   #3
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Latex over oil based paint?


Ole 34 is right again. Scuff sand with a pole sander or a sponge sander, remove dust, prime with Zinsser's B-I-N bonding primer (latex), allow to dry for a day, then apply 2 coats of your favorite latex finish paint. Job done.
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Old 03-08-2011, 08:20 AM   #4
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Latex over oil based paint?


Thanks for your help, ole34, and gymschu.

I was hoping to get away from priming it first....
I will get some primer then, and do the job right.
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Old 03-08-2011, 01:53 PM   #5
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Latex over oil based paint?


Yummy, I have gambled before with latex over oil & I usually lose. You are wise to play it safe and do it right!
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Old 03-08-2011, 03:10 PM   #6
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Latex over oil based paint?


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Originally Posted by Gymschu View Post
Yummy, I have gambled before with latex over oil & I usually lose. You are wise to play it safe and do it right!


some people will sand down the gloss and then hit it with latex but like you said about gambling and losing..............its not worth it
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Old 03-08-2011, 03:48 PM   #7
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Latex over oil based paint?


If it were me, I would prime it with oil. Bin will work too but the smell can drive you nuts and it can dry wicked quick giving you lap marks when brushing.

Last edited by Matthewt1970; 03-08-2011 at 03:52 PM.
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Old 03-08-2011, 08:04 PM   #8
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Latex over oil based paint?


Bin smells bad???

My dad wants me to just use oil, but I cannot stand the smell.

If Bin smells bad, is there another one on the market that smells better?


Thanks everyone for your help.
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Old 03-08-2011, 08:13 PM   #9
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Latex over oil based paint?


if its not lead base paint lightly sand walls every inch fine sandpaper . you dont need to go nuts you just deglossing old oil finish . this wont take long .then oil prime zinsser cover stain .you said you dont like the smell .i dont know anybody that does .but imo i would not do it any other way. follow dry times then 2 coats latex.ps if need be cover stain can go right over with out sanding
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Old 03-08-2011, 08:56 PM   #10
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Latex over oil based paint?


B-I-N smells no worse than most latex paints in my opinion. If you want to use an oil-base primer use KILZ Odorless.
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Old 03-08-2011, 09:00 PM   #11
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Latex over oil based paint?


i got $^&*^% off of cover stain before while spraying it in a basement ............not fun, me an my boss were outside talking stupid for about half hour
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Old 03-08-2011, 11:03 PM   #12
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Latex over oil based paint?


I would just sand the surface as suggested and use a quality latex primer. I never have any problems doing it this way. The important thing is to use a primer. In my experience it really doesn't matter what type, so long as it is employed as part of a coherent system.
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Old 03-08-2011, 11:39 PM   #13
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Latex over oil based paint?


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B-I-N smells no worse than most latex paints in my opinion. If you want to use an oil-base primer use KILZ Odorless.
I think you might be confusing B-I-N (pigmented shellac) with Bullseye 123 (all purpose acrylic). I've used a lot of B-I-N for fire restoration and those alcohol fumes will kick your butt if you're not careful.
Bullseye 123 is a good product for YM's purpose. Ben Moore Fresh Start is another good choice. A good cleaning is necessity, a light sanding is insurance.
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Old 03-10-2011, 08:36 AM   #14
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Latex over oil based paint?


I'm holding my fire, still waiting on something in writing on this topic. So far, haven't been offered anything other than anectodotal proof that an intermediate layer is required. Can tell you that I asked this question again yesterday in the paint store, Why do you recommend a primer between latex and oil? Because people don't sand, and they're covering their butt. The old timer standing there agreed. I have never seen the necessity of priming in writing, no where, ever.
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Old 03-10-2011, 08:49 AM   #15
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Latex over oil based paint?


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Originally Posted by jsheridan
I'm holding my fire, still waiting on something in writing on this topic. So far, haven't been offered anything other than anectodotal proof that an intermediate layer is required. Can tell you that I asked this question again yesterday in the paint store, Why do you recommend a primer between latex and oil? Because people don't sand, and they're covering their butt. The old timer standing there agreed. I have never seen the necessity of priming in writing, no where, ever.
You can approach it however you want.

People who have done it and continued to live in the house for 15 years will usually see the issue. You won't peel in the painters warrantee period if that's the discussion.

My father just sanded this mess off of an entire top floor by himself because he was told by latex proponents that you can do as you mentioned 10 years ago.

Today's products may be better, but for the cost, in my own home - I wouldn't gamble on it.

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