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Old 04-13-2009, 06:06 PM   #1
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Default What do you think?

So I overhear a converstation about paint today. Lady tells guy she has latex paint on her exterior, but wants to repaint it with oil. Wants to know if that's ok. Guy says "Ohhh yes mam, you can put it right on no problem and it will be fine. It's latex over oil you can never do."

What do you think of this advice? Seriously.
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Old 04-13-2009, 06:23 PM   #2
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Interesting..

I've heard the same thing... Oil over latex is ok but not the other way around.. Never done it, but only heard about it.
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Old 04-13-2009, 06:54 PM   #3
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I have SW ProCLassic Waterborne over oil in my own home. No problems if you prep it right.

Brian Phillips
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Old 04-13-2009, 06:56 PM   #4
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Quote:
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I have SW ProCLassic Waterborne over oil in my own home. No problems if you prep it right.

Brian Phillips
I agree with Brian as I have done a WB over oil, but I think each situation would have to be looked at on a individual basis..
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Old 04-13-2009, 07:25 PM   #5
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Can't put acrylic over oil??.....hummm ok...
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Old 04-13-2009, 07:50 PM   #6
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Default WB over Oil

I've not experienced any problems w/ a high-end exterior acrylic over oil, in an interior application.
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Old 04-13-2009, 07:54 PM   #7
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You can paint anything if the surface is prepped properly.
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Old 04-13-2009, 07:58 PM   #8
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I've done the same as Brian. Not sure why you would want to do it on an exterior though.
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Old 04-13-2009, 08:40 PM   #9
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Oil is basically on its way out so it wouldnt make much sence to put it over latex on an exterior. Im wondering,what kind of luck have you guys had with latex stain or paint over oil stain that is in decent shape without a full prime?
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Old 04-13-2009, 08:53 PM   #10
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The reason some of the old timers said you can't paint latex over oil is because when latex first came out they felt as though the latex would shrink as it dried and pull the oil off of the building, and I think they must have been right about that at that time.
I don't even think they use any latex rubber in paint anymore, so that may not be the case anymore. There are so many buildings all over the country that have been painted that way, I think they have figured out the problem by now.Water base paint and wood go together, like pea's in a pod.
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Old 04-13-2009, 09:02 PM   #11
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Until the last few years, I always though no latex over oil. Now I read it can be done. Maybe sanding the oil before applying the latex works, I do not know with todays paints. Got primers that claim to adhere to anything.

I did wonder why you could put latex over oil primer but not oil paint. Someone explained that a while back.
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Old 04-13-2009, 09:12 PM   #12
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Quote:
Originally Posted by johnpaint View Post
The reason some of the old timers said you can't paint latex over oil is because when latex first came out they felt as though the latex would shrink as it dried and pull the oil off of the building, and I think they must have been right about that at that time.
I don't even think they use any latex rubber in paint anymore, so that may not be the case anymore. There are so many buildings all over the country that have been painted that way, I think they have figured out the problem by now.Water base paint and wood go together, like pea's in a pod.
Been there done that John, 1989 or so.Latex pulled the oil off right down to bare wood.Resulted in my first disk sand,etc.warrantee do over for free.Not Fun
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Old 04-13-2009, 09:35 PM   #13
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I have a customer that I am suppossed to look at later this week that the last painter put an alkyd on. He wants it repainted but not in oil. My plan was to full prime and finish with Aura/Duration.
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Old 04-13-2009, 09:37 PM   #14
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I really don't think you have any problems now, unless you painted over oil gloss with out roughing it up.
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Old 04-13-2009, 10:04 PM   #15
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I did this a few years back over a oil glaze faux finish. I used Pitt Manor Hall eggshell and it worked just fine as the rep said it would. I was recently at that same job for more work and took a look at that walls and they looked perfect.
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Old 04-13-2009, 11:01 PM   #16
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Ok I gave too much information. Lets simplify it a little...

"latex paint on her exterior, but wants to repaint it with oil"

"yes mam, you can put it right on no problem and it will be fine"

What are your opinions on this advice?
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Old 04-14-2009, 01:46 AM   #17
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Primer or no?
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Old 04-14-2009, 01:48 AM   #18
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Quote:
Originally Posted by JNLP View Post
Ok I gave too much information. Lets simplify it a little...

"latex paint on her exterior, but wants to repaint it with oil"

"yes mam, you can put it right on no problem and it will be fine"

What are your opinions on this advice?
I wouldn't suggest oil.
What you want man?
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Old 04-14-2009, 05:12 AM   #19
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You can paint anything if the surface is prepped properly.
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Old 04-14-2009, 06:10 AM   #20
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I was recently told by the manager of BM here and a painter it was okay to put oil over latex on kitchen cabinets. Fresh latex at that. Lady wanted more gloss on her cabinets that had just been painted with latex. Maybe I could have, but I didn't. My concern was the paint cracking. Maybe this shouldnot have been a concern since it was interior.
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