Wood Veneer

Glue interfering with veneer finish

Q. We have some veneered panels and the veneer is actual narrow pieces of veneer that are glued into a large sheet. The problem we are having is that when we finish these panels after sanding, there is a region, perhaps 1/8 inch wide on each side of the glue line that interferes with finishing, so now the glue line is obvious. Any ideas?