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Old 03-05-2013, 06:46 PM   #16
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Paintable caulk bubbling and "rising" under a professional spray?


Jsheridan I certainly do respect your knowledge and opinion but I have never heard of any kind of paint dissolving caulk.Not saying it can't happen but I have never heard of it in over 25 years of painting.If this is the case why didn't it happen on the first coat? Again, not saying you're wrong, just trying to learn something.

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Old 03-05-2013, 06:52 PM   #17
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Paintable caulk bubbling and "rising" under a professional spray?


I've had a few times where water caused the leading edge of caulk to curl and bubble just like that. You don't think a hot solvent could melt a cheap rubberized caulk?
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Old 03-05-2013, 06:59 PM   #18
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Paintable caulk bubbling and "rising" under a professional spray?


I suppose it could.Especially if the paint was thinned with mineral spirits.Thanks.I still say raised panels shouldn't be caulked imho.
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Old 03-05-2013, 07:04 PM   #19
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Paintable caulk bubbling and "rising" under a professional spray?


jsheridan, thanks for the reply! I used Sherwin Williams ProClassic enamel cabinet and door paint. Last night I already have begun doing what you just described and it's looking great so far. It would make sense if this was the reason for the curling rather than expansion to every door happening 2 hours after the 2nd coat.

I understand there are better caulks for painting over. Apparently at my local Lowes that day they must have been out of most of them as I spent over 20 minutes reading and examining all the caulks and DAP 3.0 seemed to be the best one that was paintable. I may have been wrong.

It is refreshing to receive actually reply that's helpful and offers a potential cause rather than replies telling me it's not possible to paint doors and to stop wasting time thinking about why it happened and just go fix it. Thanks!
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Old 03-05-2013, 07:16 PM   #20
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Paintable caulk bubbling and "rising" under a professional spray?


I don't spray, but I have, and I've worked on crews where spraying was done. I don't remember thinner being the go to for spraying. Naptha, acetone, xylene, lacquer thinner, etc. On xylene "Other substances that xylene will dissolve are: adhesives (glues, caulks, and putties), grease, enamels, resins and water proofing agents."

I may be wrong, but I don't think enough questions were asked of OP prior to conclusion. That caulk didn't pull away, it melted and curled.
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Old 03-05-2013, 07:20 PM   #21
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Paintable caulk bubbling and "rising" under a professional spray?


Shift, is that latex or oil? And do you know what he used to thin it. Even if it was latex and water thinned I stand behind the reason for the failure. Buy the caulk where you bought the paint, at a real paint store.
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Old 03-05-2013, 07:31 PM   #22
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Paintable caulk bubbling and "rising" under a professional spray?


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Shift, is that latex or oil? And do you know what he used to thin it. Even if it was latex and water thinned I stand behind the reason for the failure. Buy the caulk where you bought the paint, at a real paint store.
It's latex. I'm not sure what he used to thin it, I'm sorry. Your reason for the failure sounds spot on to me. Thanks!
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Old 03-05-2013, 07:56 PM   #23
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Paintable caulk bubbling and "rising" under a professional spray?


If you click on the pic it gets much larger and you can see that the caulk is still bonded to the door, it's just wrinkled and bubbled. As you said, they sat fine for two weeks, and then in a 24 hour period, over which two coats of paint were applied, then it all of sudden happened. Funny, I read on DAP 3.0, it's supposed to be superior for water resistance, better than silicone, huh.
I did a job a few years ago where I had to do a lot of caulking on window sills with non-insulated glass, and it was about 20 degrees outside. The condensation built up on the glass, ran down, and puddled on the sill. It caused all the caulk on the sill wrinkle and curl and it looked just like that. That's the first thing I thought of when I saw it.
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Old 03-05-2013, 10:05 PM   #24
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Paintable caulk bubbling and "rising" under a professional spray?


Still looks like expansion to me.The caulk is stretched and pulled loose around the edges making it look curled.No way a waterborne paint melted 2 week old caulk.Two coats of latex would make it swell.
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Old 03-06-2013, 05:49 AM   #25
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Paintable caulk bubbling and "rising" under a professional spray?


May be one of those things we'll never know. I probably feel as strongly that two coats of paint will not penetrate a coat of cured primer to cause enough swelling to damage caulk as you feel about wet latex activating and curling the caulk. I'm not saying you're wrong, just seems less logical. Maybe a chemist/technical guy, ahem, might come along and enlighten us, lol.
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Old 03-06-2013, 10:11 AM   #26
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Paintable caulk bubbling and "rising" under a professional spray?


"Sherwin Williams ProClassic enamel cabinet and door paint".

Isn't that a waterborne alkyd enamel? and not per se 'a latex'?
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Old 03-06-2013, 12:48 PM   #27
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Paintable caulk bubbling and "rising" under a professional spray?


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"Sherwin Williams ProClassic enamel cabinet and door paint".

Isn't that a waterborne alkyd enamel? and not per se 'a latex'?
http://www.sherwin-williams.com/home...cts%20Redirect

ProClassic® Interior Acrylic Latex Enamel
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Old 03-06-2013, 01:06 PM   #28
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Paintable caulk bubbling and "rising" under a professional spray?


Did you use masking tape when you applied the caulk? That inside edge looks like what would happen when the edge of the tape pulls up on the sealant.
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Old 03-06-2013, 01:08 PM   #29
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Paintable caulk bubbling and "rising" under a professional spray?


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Did you use masking tape when you applied the caulk? That inside edge looks like what would happen when the edge of the tape pulls up on the sealant.
No tape, just my finger and a wet rag.
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Old 03-06-2013, 08:46 PM   #30
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Paintable caulk bubbling and "rising" under a professional spray?


Quote:
Originally Posted by shiftlft View Post
jsheridan, thanks for the reply! I used Sherwin Williams ProClassic enamel cabinet and door paint. Last night I already have begun doing what you just described and it's looking great so far. It would make sense if this was the reason for the curling rather than expansion to every door happening 2 hours after the 2nd coat.

I understand there are better caulks for painting over. Apparently at my local Lowes that day they must have been out of most of them as I spent over 20 minutes reading and examining all the caulks and DAP 3.0 seemed to be the best one that was paintable. I may have been wrong.

It is refreshing to receive actually reply that's helpful and offers a potential cause rather than replies telling me it's not possible to paint doors and to stop wasting time thinking about why it happened and just go fix it. Thanks!

Not that he needs any help in this discussion, but I kinda gotta agree with JSheridan on this one...To me it looks as though something has wicked up beneath the caulking causing the wrinkling and blistering.

You didn't say it was happening all over, is it possible the areas affected are where a too thin a film of caulk was left on the surface after smoothing with your finger and wet rag? ...and the wet rag you're using to smooth out the bead with, is it wet with water or with thinner? If with water, that may be part of the problem - while, personally, I kinda like Dap Caulks (Alex & Alex Plus), I'm not sure I would've chosen this 3.0 for this application - even though it says it's paintable within 30 minutes. There are enough resin and solvent differences between the finish paint and caulk to make me a little uncomfortable with this system - especially in the time frame Dap says it's OK to paint over with acrylic.

As far as painted cabinets go, they are most certainly paintable. And a good paint job can look great on painted cabinets (even maple, birch, etc.)...I painted my cabinets with a water-borne system 13 years ago (stained and finished birch) and they still look great.

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Last edited by ric knows paint; 03-06-2013 at 10:20 PM.
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