Latex paint binder dripping down cold walls?

When we bought our house the previous owner had painted the interior (saleability), and when we moved in in June, noticed what I thought was latex dripping down the walls above the fireplace. I was mad, thinking it was cheap paint, etc. It eventually subsided but never disappeared. We repainted the room a couple of weeks ago, a nice bright red that took me about nine coats and two weeks :( to do well enough to call it done. Behr's Ruby Ring - nice color. But buy a couple of extra gallons and save yourself many trips back to Home Depot).





Anyway, it looked nice. Then we get the first cold snap of the season (Calgary -30's)... Lovely. I guess the more coats means more goo to come seeping out of the paint (yellow, slippery to touch, wipes away). I'm pretty sure it's the latex paint binder (acrylic?) or some other ingredient (ethylene glycol?), coming out of the uncured paint on the spots of wall that are less than 10 C ( I can see the wall studs, where the binder is not coming out). I'm seeing red. Really I am. Looks like I'll be repainting in Spring. My question is - anything I can do to avoid this? Shall I reprime? Is it just a matter of painting with enough time to allow the paint to REALLY cure? Will this seeping happen regardless if the wall spots will be cold like this? Oh well, painting lessons learned. Luckily a big mirror is going above the fireplace anyway. Thanks for any advice for the Spring.Latex paint binder dripping down cold walls?
My suggestion is to use an Oil based stain blocking primer to seal everything up and use a better quality paint (behr is given a high rating by consumer digest but in reality is a cheap quality paint, use Sherwin Williams brand and save yourself a couple of extra coats of paint). The oil primer is vital to sealing in the staining problem, latex base simply will not do this. So seal the staining area with an oil based sealing primer and topcoat with a high quality latex paint. Should not have this problem again. There may have been a problem with the tint agent used in the paint, especially given the wide range of temperatures they are facing. Good luck.





http://thepaintprofessional.com/ - free advice and suggestions for the DIY painter.Latex paint binder dripping down cold walls?
This really doesn't sound like a paint problem. I've never heard of latex paint dripping yellow goo, or of such a thing coming out of dried paint. I can't see someone getting so much paint on the wall that it doesn't dry, especially in June in Calgary when it could easily be warm enough for latex paint to dry in less than an hour. If they put that much paint on the wall, it would be dripping all on its own as it was being applied. The paint is dry, or it's not. If you have ';uncured'; spots on the wall, there has to be a moisture problem on the wall, and I'm guessing you have a leak around the chimney. Is it a woodburning fireplace in the chimney? Water mixing with a bit of creosote can be brownish or yellowish and such a stain can be persistent enough to come through several coats of paint if you didn't use a stain blocking primer. If you can see ';shadows'; on the wall where the studs are, you may have no insulation, or again you may have a moisture problem on that wall. I wouldn't put paint or anything else on the wall till you check if there's a leak or some serious condensation happening.