Q. I just noticed that our gluing press has a slight drop in pressure after the peak pressure is reached (caused by a drop in air pressure when another machine kicks in). Is this possibly the cause of our weak joints?

A. Yes indeed. Never ever allow the pressure in gluing, once the excess glue as squeezed out, to drop even a tiny amount.

Gene Wengert, “The Wood Doctor” has been training people in efficient use of wood for 35 years. He is extension specialist emeritus at the University of Wisconsin-Madison.