The material I currently use does weigh a lot. It is 1.5lb/ft.sq. with a specific gravity of 1.8.
I conducted an experiment to find out which material reduces the maximum decibels. I have a 6"x6"x6" box where I put 1"/2" foam/quilt, entirely covered. Made a small hole to put in the sound meter...
The sound enclosure should be flexible and removable. The current one we have has wheels and made of angle iron and expanded metal. and we have the sound deadning material glued to it. Concrete may not work because of the flexibility issues.
Is there any particular kind of wood which is a good...
We are a plastic sheet extruder and we grind our scrap in a 40HP plastic grinder which grinds the sheets/thermoformed skeletons to small pieces. The grinder is old and generates a lot of noise. More than 110db while grinding.
We did build a sound enclosure around it to reduce the noise but did...
