Quote Originally Posted by mah View Post
Some years ago, I had a very large indoor area paved with natural slate tiles on a concrete slab. The adhesive used was rubber loaded to provide load spread and noise damping. If this type of adhesive will adhere to wood products it may work in constrained layer damping applications. I will experiment.

Cheers, Marshall.
Here's a product I used with some success for constrained layer damping. Acts as an adhesive & damping.
Available from Hawthorn Audio......Green Glue [GG] - $18.00 : Zen Cart!, The Art of E-commerce.
No affiliation.