I want to use
Green Glue between two layers of 3/4 MDF to make non-resonant speaker cabinet walls. The largest parts are 12" x 48" with open air on all four edges. Some questions:
1. Is the MDF porous enough to absorb the moisture to let it dry? Is the green glue wet enough to cause significant swelling of the MDF?
2. Is the green glue a strong enough adhesive so the panels don't have to be fastened mechanically? I am thinking that staples will short circuit the damping effect. Is this true?
3. To get maximum damping effect, can I trowel the green glue to total coverage (thin coating) on both sheets to be joined, or should I use the recommended "shoot the silly string" method. Seems like a solid layer would work better, damping every cm^2. Will it still dry well?
4. I assume that the thinnest layer of damping will have stonger effect than thicker layers because sheer force will be higher in proportion to the difference in thickness. Unless Green glue damping is optimized to work best in a thicker layer.
I will try gluing up some samples, but I am interested in everyone's opinion.
Thanks!!
Rich