sealing mdf for painting

[wberminio]

Dido on Daryl's comments!

[pappybaynes]

It doesn't have to be the oil based Zinsser, the latex works just fine and will not wipe off.

[kubotaman]

Yes you can use the water base Zinsser but it doesn't chalk nearly as well as the oil base. That is why I don't use it.

[myxpykalix]

The mdf is part of the accents going on a castle bed for a little girl who has had brain operations and i think i'd rather stay away from oil based primer/naptha/thinners if possible.

I think Joe or someone recommended a mix of 50% yellow glue/50% water and that seemed less caustic to me.