[AlexWhite532]

I'm just wondering if it's better to use a bonding primer then latex paint on unpainted cement ceilings, or use a specialized product like Loxon or some epoxy. I'm also wondering if cleaning is necessary.

 

[fromthenorthwest]

Probably depends a bit on the type of project, but I would probably just use whatever you're using everywhere else. I paint foundations with house paint pretty regularly and haven't had any problems, especially if you're using something like Regal or Duration.

If it was a larger or higher-end project I might use a specialized product just to be safe.

 

[finishesbykevyn]

Please give more details or pics of the project as to a best practice.

 

[AlexWhite532]

Please give more details or pics of the project as to a best practice.

Here is the ceiling that's getting painted.

 

[finishesbykevyn]

Personally, I would prime it with something like Aqualock. It looks pretty smooth and there may be some kind of sealer on there. 🤷‍♀️ Insurance.

 

[Mike2coat]

I would use a quality masonry primer like Loxon.

 

[vwbowman]

Another good choice would be Ben Moore's Ultra Spec Masonry primer 608, specifically because of it's high alkali resistance - up to pH-13.