chalkboard/magnetic paint Q

[blissed]

I'm toying with the idea of make-your-own chalkboard paint for some walls in the house, and possibly magnetic paint (we have no magnetic surfaces in our house!). But I'm worried about the long term -- like when I have to sell this house some day. Would I be ruining a surface with it? Or is pretty easy to repaint over? Sorry if that's a dumb question; I'm a lazy wall-painter and rarely do enough to prep a surface if it's halfway decent to begin with.
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[Croquette]

This doesn't really answer your question, but I just wanted to say that I have not had much luck with magnetic paint. I tried magnetic spray paint for a small project, and after several coats it wasn't magnetic enough to hold a little piece of paper up. There's this stuff called Magically Magnetic Paint Additive that is a powder that you can add to primer that worked better, but it was still sort of weak with regular magnets. It was fine when I used rare earth magnets with it, but those are super strong and can be dangerous if you aren't careful with them (they can quickly snap together with enough force to hurt you).

If you're worried about ruining your walls, maybe you can get a big piece of plywood to paint and then hang on the wall? You could try something like this -- I actually worked for this show so I am quite familiar with that project if you have any questions about it. Now that I think of it, I had to repaint the cabinet door back to white, and I was able to do it, though it took several coats of primer and paint.

[KnucklesTheDog]

I've had some experience with this, as has Chairs.

I used the good, expensive chalkboard paint...and it took, like 8 coats before it would hold a pretty strong magnet. At all.

Were I wanting a large magnetic area, I would definitely go to the lumberyard and get a big-ass sheet of some kind of magnetic metal, paint it with chalkboard paint, and mount that on the wall than deal with magnetic paint again.

[Sleepyhouse]

Yeah, I wanted a magnetic wall so i just got a giant sheet of sheetmetal and nailed it to the wall.

I had chalkboard paint, but never used it.

[alice-palace]

I've used chalkboard paint but never painted over it. It does NOT come out of carpet well. :-/

[kate]

when she was teaching kindergarten, my mom used chalkboard paint to repaint a chalkboard after it had gotten all shiny and you couldn't write on it anymore (I'm sure you ran into those as a kid in school). the chalkboard paint eventually got shiny and stopped working too, though you probably wouldn't be writing on it as much as she was! after it went bad she repainted it (several times) again with the chalkboard paint and had no problems, so I'd suspect that you wouldn't have too much of a problem painting over it with a regular paint, especially if you used a primer.
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[meexie]

I've used chalkboard paint on metal CD cases, and it took a few coats before I got a surface that worked well. I tried painting over the edges of the chalkboard painted part, and I suspect that trying to cover up a wall of it would be a big ol' PITA. Maybe you could get some cheap/recycled surface to paint and mount on the wall instead of putting the paint directly on the wall?
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