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My door has raised grain in the plastic panels.

How do I refinish a front door that has raised grain in the plastic panels?

These grain look like a light oak finish on real wood but is plastic with leaded glass in the center. Do I lightly use steel wool on the peeling areas and then wipe an oak stain over the surface and then spray the entire door with a clear laquor?

Answer: 

Take some 600 wet sand paper and sand it down using water with the paper. Wipe the door down, removing all traces of the sanding operation. Clean is a must here. Get that 600 grit wet paper at Lowes.

Then buy a tube of P/L Polyurethane Construction adhesive and with a rag and wet apply a thin coat to the entire plastic surface. Make sure its thin everywhere, and no gobs or thickess to it just a seal of the surface. One will be more than enough. Wear plastic gloves and once the poly gets onto your hands it is impossible to remove it. Be sure to use water as the Polyurethane requires water to polymerize (cure). It will be very smooth and you will still be able to see the grain. Lowes also sells this for about $3.88 per tube, I just bought some.

Then take a can of oil stain and apply that to the door and wipe it down after about a 1/2 hour with a rag. You might want a couple coats of stain, if so, apply them and let them dry overnight before the 2nd and /or 3rd coat is desired.

Wipe the door down with a tac rag and remove all traces of the sanding operation. Clean is a must here. Then seal the door with a foam brush with polyurethane exterior varnish. You can also get that at Lowes for about $10 a quart. You can sand with that 600 grit wet paper and water between varnish coats. It will be very smooth if you do that. That is about it. The door will be restored to about its original condition and last much much longer this time around.