This is a product I came across - Gypframe Acoustuds
from Saint-Gobain - and I'm seriously considering investing in it as non-load-bearing studs for my partition structure (here is my thread
relating to this project) as the material is available here in Chennai, India and doesn't cost a lot (70 mm type, 3600 mm length costs approx $7/pc).
Website for the product: Gypframe AcouStuds
And this PDF manual
is the only related literature I found anywhere on the internet. Question:
Has anyone used this material to achieve sound isolation before? Is there anything you can tell me about it?
If not, would anyone be as kind as to look at the manual (which is detailed) and tell me (educated guess?) if the product might perform anywhere near as well as traditional 'resilient channels'?
As my project plan will tell you, my application is: MASS
(Existing concrete wall+28mm Softboard panels + 1 layer of 5/8" or 15mm drywall)
('Acoustud' stud frame with 450mm centres with soft fiberglass wool inserts)
again (2nd layer of 15mm Drywall+ 3rd layer with GREEN GLUE applied before installation).