Face veneer thickness
The primary importance of the thickness of the face/back veneer is related to the amount of sanding the panel can resist before the glue line is exposed. Thicker veneer means greater ability to sand with coarser grit paper. In addition, thinner veneer is more likely to split or check with changes in relative humidity.
Many mills in China use “thin face” veneer, generally 0.15-0.25mm thick. Please note that this veneer thickness refers to raw face veneer – your finished panels will have face veneer of this thickness less what has been removed in the finish sanding process at the mill. Hence, the actual veneer thickness of what you will see is also partly determined by the quality of sanding equipment at the mill.
Thinner veneer will have more manufacturing defects ,such as telegraphing ,bleeding ,uneven ,sand through …