We just received our Exterior doors for the Granny unit and the contractor
does not want to put them up until we seal or paint them. We do not know the
color scheme yet, so we don't know what color to paint. What can I put on
the doors to seal them from the weather, but be able to paint on top of it
later?

The Contractor said to not just use a primer, as primer paints are not
sealers.

Any Suggestions?

Thanks,

Scott-