We are having issues with glue lines in our veneer from our vendor. We can not seem to eliminate the lines, even after sanding with a good panel sander. Since we are using a waterbased finish, will we be more prone to lines that would have been covered up by solvent based finishes? Is there a good way to detect these lines? We thought we had eliminated the seams after sanding - you can't see them before finishing, but then after the second coat they appear, causing a very large headache.
From Jeff Pitcher, forum technical advisor:
You should talk to your vendor about their splicing process. Very often, veneer splicers use too much splicing adhesive when making faces, which results in a thick (visible) glue line. You also might want to check the MC of your veneer. If it's over 10%, this could be adding to your problems.