Bin Oil base primer or not? for the Bathroom


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Old 05-28-17, 02:33 PM
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Bin Oil base primer or not? for the Bathroom

Overview:
I just finished repairing a badly damaged ceiling in a bathroom from a leak thru the joint from a skylight. Well since the skylight has been replaced and a thorough job in the joints and seams and no leaking for 10 months or at least no more predicted problems in this area. I did not sheetrock (Yes Greenboard) the whole ceiling since I didn't think I needed it even though is was small bath.

I normally use latex primer indoors however I have used bin/ zinser with success in repainting greasy kitchens. I am just thinking with the humidity build up and having been a damaged area in the roof would it be beneficial using Bin as a preventive measure? I think so?
thanks
 
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Old 05-28-17, 03:45 PM
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You dont generally want to use oil primers indoors because of the odor and the fact that it raises the hairs on bare / new drywall. But it is similar to "original" Kilz, and is a good stain blocking primer. If you have stains to cover, especially waterbased stains, such as from a roof leak or nicotine (smokers) it would be good. If not, any primer or ceiling white paint would work just fine.

You always want to lightly sand before/ between coats to knock off any nibs on the surface.
 
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Old 05-28-17, 05:25 PM
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Old 05-28-17, 05:41 PM
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Don't confuse Zinsser Cover Stain (oil based) with Zinsser BIN... (pigmented shellac). Both good products, but clearly different. Just noticed you said BIN "oil based" above, which is a misnomer.
 
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Old 05-29-17, 03:03 AM
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Ya, BIN a pigmented shellac is an alcohol based primer which has better stain hiding qualities than oil base primers. For the most part latex primers have poor or short term stain hiding. I would never depend on a latex primer to hide water stains.
 
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Old 05-29-17, 07:19 AM
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I used Zinsser BIN shellac primer on my kitchen cabinets and all the trim. The odor was not bad at all except when I got to small areas and corners, so I wound up buying a mask ($30) that worked great. I thought that primer was awesome - I would use it again without hesitation.
 
 

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