how to prepare walls for painting if cracked d/t latex over oilbased paint?
Answers:
I have the same problem due to the previous owner of my home. What a mess!. I was told I have to scrape off the big flakes and then sand off the rest. It takes forever to sand it off. I sure can empathize with you!
Other answers:
Yep... the only way to prep (actually clean up the mess) of latex paint over oil base paint, is to scrape it down, as much as possible. You might get away with using a citrus based paint remover... it's not quite as harsh as a lot of paint 'strippers'.
Another alternative would be to rent a joint compound sander (powered, with vacuum attachment, to minimize dust), and use that on the walls. I would suggest playing with different kinds of sandpaper, and sand screens... screens are what they use for the joint compound, because they do not clog up as easily as sandpaper, so that might be a better choice.
If you use any chemicals, be safe and use an appropriate dust mask, and plenty of ventilation
Good Luck!
Yep... the only way to prep (actually clean up the mess) of latex paint over oil base paint, is to scrape it down, as much as possible. You might get away with using a citrus based paint remover... it's not quite as harsh as a lot of paint 'strippers'.
Another alternative would be to rent a joint compound sander (powered, with vacuum attachment, to minimize dust), and use that on the walls. I would suggest playing with different kinds of sandpaper, and sand screens... screens are what they use for the joint compound, because they do not clog up as easily as sandpaper, so that might be a better choice.
If you use any chemicals, be safe and use an appropriate dust mask, and plenty of ventilation
Good Luck!
You can paint over oil base with no problem, unless it is Gloss- if gloss, use an alkaline Flat to prime it, then use the latex, of course, prep it by remove an loose peeling paint.
Read this guide for tips how do u get out of housework?