I am just finishing my version of Norm Abrams "Deluxe Router Station". The fence is made of 3/4" MDF. The working face of the fence is covered with a laminate. The bottom, back and sides are bare sanded MDF.
Can I apply a fast drying polyurethane to seal it without causing it to warp or become crooked?
I live in an arid climate. Our average annual precipitation is only 13".
Or should I just let it remain unsealed?