I'm old school and would stick with oil primer because I know it will work. Some of the others have experience with the high bond latex primers and should better able to advise you that.

 

Valuable vote from a retired painter. One vote for sticking with oil primer.
Thanks.

 

Any waterbased bonding primer will glue itself to scuffed, clean oil, just fine. Stix, or XIM UMA are two of the best out there though. Even a cheaper brand like 123 will stick just fine. You also need to remember that they are constantly making waterborne stuff better and better, while simultaneously arent making oil as good as they used to.

 

Thanks for your vote. All input are evaluated and appreciated.

 

Yes, forget oil paints, except for some specialty situations. ..... The most important thing to me, and that you didn't mention, is the 'finish' on the existing oil base wall paint. (And BTW, if you haven't started using the 'oil base' primer, don't). ...... If the existing wall paint is a 'flat oil', I would just paint over it. But that is 'only' if there is no sheen to it, and there are no signs of poor adhesion.

Latex paints have been applied over oil/alkyd base primers for decades, it is just that the primers do not dry with more than a 'egg shell' sheen at most. Your wall paint is no different. And personally, I wouldn't waste money with a primer in between, just use a quality wall paint. If second coat is needed, let it cure first for a week at least.

 

Yes, forget oil paints, except for some specialty situations. ..... The most important thing to me, and that you didn't mention, is the 'finish' on the existing oil base wall paint.

The finish of the existing oil paint looks a bit flat after 30 years. Don't remember if it was satin or semi-gloss when new but definitely not flat when new, as I have never painted anything with flat paint.

(And BTW, if you haven't started using the 'oil base' primer, don't). ...... If the existing wall paint is a 'flat oil', I would just paint over it. But that is 'only' if there is no sheen to it, and there are no signs of poor adhesion.

I painted latex over oil paint in our laundry room about when I painted the other interior walls with oil based top coat. The latex paint in the laundry room peeled off. So I won't gamble with latex directly over oil paint any more. (I always sand walls before applying a top coat so not sanding was not the reason.)

Latex paints have been applied over oil/alkyd base primers for decades, it is just that the primers do not dry with more than a 'egg shell' sheen at most. Your wall paint is no different. And personally, I wouldn't waste money with a primer in between, just use a quality wall paint. If second coat is needed, let it cure first for a week at least.

Money is not a consideration. After the latex in the laundry room peeling off the oil paint incident, I will only use a primer over oil paint before a latex top coat.

Thanks! All input are appreciated.

 

I agree about oil paints slowly fading away but I'm still using oil based primers on occasion and this is one of those occasions.

 

Thank you very much for your input. Seems about equally divided between using an oil based primer or a water based bonding primer, so far.

 

It depends on the new paint used. I have found Benjamin Moore Aura paints stick to anything and I get double the coverage per gallon of paint so the cost per square foot is no more than for cheap paint. Always important to clean the surfaces with TSP or similar product.

 

mportant to clean the surfaces with TSP or similar product.

TSP is a great cleaner BUT it must be rinsed well as leftover residue can cause adhesion issues. I normally only use it on the exterior where I can rinse it with a pressure washer.

 

I basically never use TSP anymore. I use TSP substitute (or something really specific for a specific problem.) I believe the TSP substitute actually increases paint adhesion even without being 100% rinsed off.