[gramps4]

Hello,
I have painted a room ceiling with SW Emminance, and walls with a mutt mix of 8 year old para suede which appeared to be in good visual condition and Sico Multicolour. I only bought the Sico due to limited options during Covid. I traditionally only stick with SW, BM or Para.

I think the smell is coming from the mutt mix, but not entirely certain.

The walls seem a tad little tacky.

There is a lingering odor for the last 4 days. I cannot descibe the odor, but it is unpleasant. I have painted many rooms before, but I have only encountered a lingering smell once before many years ago.

I am considering painting over the whole room with a product to mask the odor.

i would appreciate any suggestions on how to fix this issue. if you would paint it over, what product would you use? Would you do some other method?

Thanks
-G

 

[Gymschu]

I know it's not the Emminence. I've used it for years with no odor issues. I don't know what "mutt mix" is so I can't speak to how it smells. One thing to try is to get fans going. Have them pointing towards the walls and have one in a window to draw the odor outside. Not saying it will work, but, I would try it first. If that fails, you may have to cover the walls with BIN primer. It, too, stinks to high heaven but would seal up the odor that has you concerned. You would then have a blank slate to start all over with products you know don't leave a lingering odor.

 

[XSleeper]

Yep. Cant do much about it now but ventilate. Open a windows and use fans. Turn the air conditioner on too, reduces humidity and helps drying. Paint is dry to the touch but not cured... curing can take days.

 

[gramps4]

I know it's not the Emminence. I've used it for years with no odor issues. I don't know what "mutt mix" is so I can't speak to how it smells. One thing to try is to get fans going. Have them pointing towards the walls and have one in a window to draw the odor outside. Not saying it will work, but, I would try it first. If that fails, you may have to cover the walls with BIN primer. It, too, stinks to high heaven but would seal up the odor that has you concerned. You would then have a blank slate to start all over with products you know don't leave a lingering odor.

cool. thanks i have been using the fans constantly. by mutt mix i meant i mixed two different paints in a bucket. akin to a mutt dog of different breeds.

does BIN smell go away quickly, or am i trading one issue for another? are there other products besides bin that would work? also how long do odors typically take to go away in a painted room?

how many days would you wait before you would say something has to be done. If it is par for the course, but i dont know how long this will go on for.

Thanks

 

[XSleeper]

Everything has some sort of odor to it. Just like that new car smell. If you paint over it, IMO you will just add another smell to the mix. I would "think" that after 1 or 2 weeks it would go away, but it depends how much you ventilate, and how many times the air is exchanged in those 2 weeks.

You would be better off masking the smell with deodorizers, and wait it out imo. It should get less and less noticable every day.

 

[gramps4]

My patience is done. I am looking at about 10 days with smell and no sign of disapation.

I am now looking to apply BIN. I have been looking over the instructions and have a question about it's application. After applying 1 coat, do i wait 1-3 days before applying Latex paint, or is that done after 45 minutes?

I would like to do whatever is ideal. I called the tech support just before they closed and said to apply a second coat between 45min to 1 day for adhesion purposes.

• would a 6mm / 1/4" l NAP roller be a good choice for application?
• will the latex paint slow down the BIN dry process?
• If i want the BIN to dissipate as much as possible, how long to wait to apply latex paint such as BM Aura?
• could there be an issue that the coat underneath, only cured for 10 days needs to be cured before a BIN application?
• i am concerned about keeping a wet edge with a roller due to very fast drying. the concern is that i would trap in BIN by over rolling on top of a cut in. should this be a spray application only? as CA painter cautions using a 2nd coat of BIN. https://www.painttalk.com/f2/chemical-odor-bin-shellac-83378/

any tips are appreciated

 

[XSleeper]

If you have the time, I would wait 1-3 days before recoating it. That is the amount of time it takes to cure. Dry time and cure time are not the same. Scratch it with your fingernail after 20 minutes when it is dry to the touch. Then scratch it after 45 minutes, when they say it can be recoated. If you wait even longer 1-3 days it gives the primer time to cure, and bond better, and it will be harder and harder to scratch off. And by giving it a few days you will know if the smell is gone.

If you don't have the time, topcoat it after 45 minutes like the directions say. And hope the smell is gone.

 

[XSleeper]

And if it's a smooth wall, use a 3/8 nap or 1/2" nap. 1/4 nap will be dry after you roll 4 feet.

 

[gramps4]

are there issues with maintaining a wet edge due to fast drying? do you pro's spray due to fast dry?

I am trying ti figure out a way to move fast. I dont usually tape at all, but thinking that taping will help here in moving fast

 

[RanK2]

Yep. Cant do much about it now but ventilate. Open a windows and use fans. Turn the air conditioner on too, reduces humidity and helps drying. Paint is dry to the touch but not cured... curing can take days.

Yes, curing can take up to a month, and no matter what it is, it should pass with time. Oder can only occur if there is moisture, as it takes moisture to create a vapor, and vapor is necessary for your nose to detect it. I.E. dog doo will have little, if any, oder after baking in the sun for two weeks, fresh will.

All I can guess is that perhaps some of the 'mutt mix' paint may have begun to mildew in the can, but even so, once deprived of moisture it can no longer produce oder. ......... Be patient, I think you will be fine. I would not coat over it, let it air.

 

[jeffnc]

BIN is VERY runny, like REALLY runny. And very "splattery". You're going to have to tape the baseboard and make sure your floor is covered well, including everything you don't take out of the room. It does dry fast but you should be able to feather the edges so you don't get ridges. If you do, it sands reasonable well, better than standard acrylic paint. It has a very strong odor, one that I kind of like (it reminds me of a White Russian for some reason) but some people just can't stand. If it gets to you, you'll have to get a mask (no, not a dust mask.)

 

[jeffnc]

And if it's a smooth wall, use a 3/8 nap or 1/2" nap. 1/4 nap will be dry after you roll 4 feet.

You do not want to load up a 1/2" roller with BIN for walls, I promise you that.

 

[jeffnc]

Yes, curing can take up to a month, and no matter what it is, it should pass with time. Oder can only occur if there is moisture, as it takes moisture to create a vapor, and vapor is necessary for your nose to detect it.

This isn't really true.

 

[RanK2]

This isn't really true.

Okay, then state your case.

In the meantime, take any latex paint above $15 a gallon and paint a section of anything, preferably a veneer surface like paneling. Try to scrape it off with your thumbnail 3 days later, and try it again in 30. There will be a difference. Adhesion is part of the curing process.

As for oder, it's kind of basic science. ".. warm and humid air enhances our sense of smell, because the humidity carries odor molecules to our noses..".

https://web.archive.org/web/20121208071425/http://www.weathernotebook.org/transcripts/2004/12/30.php

Sense of smell is relative to humidity.

 

[jeffnc]

As for oder, it's kind of basic science. ".. warm and humid air enhances our sense of smell, because the humidity carries odor molecules to our noses..".

But that isn't what you said, is it?

 

[jeffnc]

In the meantime, take any latex paint above $15 a gallon and paint a section of anything, preferably a veneer surface like paneling. Try to scrape it off with your thumbnail 3 days later, and try it again in 30. There will be a difference. Adhesion is part of the curing process.

It has already been over 10 days. Two weeks is a standard curing time, up to 30 days in less than ideal conditions, which we don't know.

 

[gramps4]

It has already been over 10 days. Two weeks is a standard curing time, up to 30 days in less than ideal conditions, which we don't know.

Jeff, are you suggesting I am jumping the gun as it has not been 14 days yet? or something else

The weird thing is, when i vent the room exaust with an open window on the other side of the house AND also put a strong fan against the walls, and come back hours later, the smell is strong. However if i dont put a fan against the walls, it is weaker.

Blowing air against the walls is hastening whatever is happening, but not nearly fast enough. It is funny it is sort of like I would want some extreme or the other.

Although it was suggested it is unlikely to be the SW ceiling emminance, i am going to paint on a scrap piece of drywall with the leftover paint to be sure which one it is. Neither myself or my better half can if it is the walls or ceilings

 

[gramps4]

Also,
do i need to wait 30 days in total for the existing paint to "cure" before attempting a BIN application?

 

[jeffnc]

A test of the paint on some scrap drywall is a good idea. No one seems to know what the smell could be. It could simply be a special additive of that particular paint that you are especially sensitive to. Or it could be something in the drywall that was reactivated when you painted. Who knows?


Curing time is a curve of diminishing returns. Curing happens fastest within the first few days. It cures far more in those 3 days than it does in the last 3 days of a 30 day waiting period.

In any case, I see nothing written in the BIN literature that would preclude you from using it now. BIN itself, they say, reaches full hardness in 1-3 days, but can be recoated in an hour or less.

 

[lenaitch]

The OP said the 'mutt mix' was eight years old. Does latex paint support mould growth? I've opened some old cans and what was inside looked nasty; mould-like but I don't really know what it was.