House paint, I need some info

[BlueC]

I recently bought an older house that I'm currently trying to fix a bunch of deferred maintenance, and just get fixed up to stabilize/protect the house and make it nice enough to rent out. I've read conflicting info online about how to proceed with oil and water based paints, which I have both of. On the inside I'm dealing with peeling paint in the kitchen, and I'm looking for some suggestions on the best way to deal with this so we can paint. What I have is plaster walls and ceiling with what appears to be some remnants of the original oil based (dark green) paint, raw/primed plaster and then the peeling gloss/semi-gloss water based paint that was applied over that 20-30 years ago. Some areas of the water based paint has just peeled right off with minimal effort, while other areas seems to be bonded pretty well. The old oil based paint is stuck on there very well. Generally what is going to scrape off has already been removed. Any suggestions for how to proceed? Do we need to strip the water based paint entirely off of the ceiling and walls, or is there a primer that will bond to what is still there?

On another wall we found a section of drywall, which all of the water based paint came right off of. Some of the paper backing came off with the paint, and I don't see any obvious reason why the paint and paper let go there. Any suggestions for prepping that area?

For the plaster I have a few hairline type cracks to deal with and one area of a chunk knocked out. I've never worked with plaster, so what should I be using here?

On the exterior my doors have old flaking oil based paint. I've scraped and sanded the doors. Should I just hit them with more oil based primer and paint?

On the exterior I have a few areas of what I think is stucco-to-brick that I need to deal with. I want to avoid painting in these areas, but I need to fill these cracks. Any suggestions on what to use?

@AndyG @sab maybe yall have some insight for me?

 

[Cornbread]

On the interior I would trowel drywall mud to fill voids/cracks, sand, apply Killz primer, then paint with your water based paint of choice. That exterior door I'd sand smooth and paint with water based paint. Oil based paint is a pita to deal with and honestly these days no one hardly sells it anymore. For those cracks get some dap 231 that is the closest color and fill it in. The color won't match perfect but it will immediately look better than seeing a dark crack like your have currently.

 

[sab]

@sab maybe yall have some insight for me?

Unfortunately, I've got no experience with a similar situation. All the homes and buildings I've owned were new enough that they were drywall with latex paint over them. I'd be asking the same questions... Sorry!

 

[BlueC]

On the interior I would trowel drywall mud to fill voids/cracks

So just typical "general purpose" mud? For that small section of paperless drywall I was told I need to seal and skim coat it before primer/paint.

apply Killz primer, then paint with your water based paint of choice.

What about the glossy water based paint that seems to still be adhered to the ceiling? Just scuff and prime over it, and do the same for ethe scraped sections?

That exterior door I'd sand smooth and paint with water based paint. Oil based paint is a pita to deal with and honestly these days no one hardly sells it anymore.

Will water based stick to the old oil paint that remains?

For those cracks get some dap 231

I thought 231 was an interior only product.

 

[BlueC]

Unfortunately, I've got no experience with a similar situation. All the homes and buildings I've owned were new enough that they were drywall with latex paint over them. I'd be asking the same questions... Sorry!

Yeah that's where I'm at. This is the first time I've had to deal with plaster, which appears to be in good shape, and oil based paints were going out as I came into the world. The people whom I bought it from really didn't seem to know much about taking care of the place, now I'm trying to redo 60 years of their work or lack there of. The old man who lived there years ago was a bit craze, then he came down with dementia, so I'm finding stuff that just doesn't make sense and having to fix it.

The paint I think just wasn't prepped right, but I really don't know since it was done 20 some years ago. I see no reason it started peeling, but I have no idea when it started peeling.

Just like with a vehicle, damn those previous owners.

 

[MtPockets]

I would use the original oil based Kilz on pretty much everything needing paint. As you've seen already, the oil based paints adhere better long term. Yes, they can be a pain to deal with in application but the long term benefits are worth it.
For the cracks in the interior, get some painters caulk and fill them in. Once primered, it'll be fine.
I have no experience with the stucco to brick but would think there would be a caulking designed for that purpose.