Ultraform can be manufactured using either a High Flow paper (maroon edge-seal) or a Matte paper (blue edge-seal).  Both are medium density overlays using a kraft base paper.  The Matte opaque paper is treated with a glue line that cures and bonds to the wood veneer in our hot press.  High Flow describes how the resin adhesive impregnated into the paper flows and cures under the heat and pressure of our hot press.  High Flow tends to densify on the faces better with the resin flowing to where it’s needed most, ultimately giving High Flow better bonds with the plywood substrate and more durability or longevity.  This resin flow and densification also yields the translucent appearance of the paper on the panel surface; you will be able to see the underlying grain of the face veneer with Ultraform High Flow, which is good because it keeps us (Richply) honest as there’s no hiding panel defects or blemishes.  The merit of regular Matte paper is that it tends to mask the grain transfer or impart a slightly better finish to the concrete surface than a High Flow paper does in the early pours of the panel service life.