Hey all, I'm about to replace my spoilboard again, and before I do I wanted to explore the idea of a PVC plenum. Right now I have a 3 layer table, the first layer being plywood that's bolted to the frame, the second being a sealed MDF plenum, and the third being Trupan LDF.
This setup has worked well for a number of years but I'm now toying with the idea of replacing the plenum with 3/4" expanded PVC.
Has anyone done this? I'm thinking this might work well because it'll be more airtight, and I'd be able to glue it to the plywood base, and the spoilboard to it.
I've thought about using HDPE for a plenum, but it won't take glue of any kind....
This is my current plenum:
IMG_20151018_123314.jpg