Mdf painting

and also, what kind should i get and how do i use it?? thanks

Sanding sealer is just a type of sealer that you can buy at the hardware for sealing wood. If you really aren't sure what your looking for just ask for help, yep I said it, ask for help, and if they know anything about their products they should be able to point you in the right direction. Good luck man.

Home Depot MDF cant be painted.  But the better quality stuff can.  There are about 3 basic types of MDF, the Home Depot kind, a light brown, fuzzy, about 20$a 4x8.  The kind that you can paint is a lighter shade, more of a plywood color, and is solid.  That stuff costs about 30 a 4x8 and the lightweight formula which is somehow extremely light and about 40$ a 4x8.  So it depends on the type.

If you are using the Home Depot MDFthen you're gonna have to listen to the others because you will never be able to sand her smooth.  If you can get your hands on the second level then its no problem.  Im not too sure where you could get it because we get it like 30 sheets at a time from a dist.  We use it mostly to trim houses.  Much easier to work with than actual wood, but looks just as good when painted.  We only sand the cut edges because the flat sides are already extremely smooth.  So if you can find it, it will definately save you a lot of time