LET THE FUN BEGIN - NEW STUDIO CONSTRUCTION - EUROPE

As far as I can understand it's the right amount of the elasticity in between the two boards which improves the isolation. It may not be exactly the same as GG measured in dB but should help just fine.

I wouldn't count on it being "just fine". If the manufacturer does not provide the same kind of test results from independent acoustic laboratories that Green Glue Company provides, then the product is extremely suspect. Why would they NOT get their product tested, or NOT provide the results if they did get it tested???? So unless there is real data on this "local substitute", then it is a safe bet that it does NOT do what GG does. It isn't just about "elasticity" in any event... :) So if I were you, I'd save my money and not use anything rather than run the risk of wasting money on a product that does not work, or that hardens after a while, or that contains toxic chemicals, or that is a fire hazard, or that suffers from any number of other possible defects that you might never know about until it is too late.... But that's just my opinion. - Stuart -

Saving money sounds good solution always :D Regarding the tests I can only say none of these products was designed for sound isolation improvement so they never perform such tests. They have some specs on their page, but you won't see any graphs with sound isolation results so it's more a wild boar hunt in the dark :wink: As I said, I am always inspired to save money.

What about the door window, any suggestions?