Soundproofing: Tecsound 50

[Pesche]

Does anyone have experience with Tecsound 50?

Is it effective against airborne noise?

Can wooden floors be fitted on top, or should it be carpets?

[Sparrowhawk]

Bumping this thread, as I'm considering Tecsound or Mass Loaded Vinyl (MLV) this to finish off my soundproofed floor, which isn't quite there yet (for airborne sound). Words are now indistinct, but would be good to cut the rumble of voices further.

 

Currently have

18mm chipboard, gaps sealed with acoustic sealant

50mm glass fibre soundstop

Plasterboard (unknown thickness)

 

Adding something on top before I lay laminate flooring would be significantly less hassle than adding a 2nd layer of plasterboard to the ceiling below.