i regularly get work mounted on 3/8 mdf
and my print mounter asked me last week if i had
seen the work they do with 1/8 masonite
( i think he said masonite )
heavy, yes but when a print is beautifully mounted
on it, a box put around it, and something behind it
( so it floats )

WOW!

hope your print turned out well bill

john