Eco/Alternative Fibre Absorption

Many folks are interested in ’Healthy' 'Green' and other, alternatives to Rock and Glass Fibre. I would like to start a growing list here. I will kick the ball in just to get the game started.... Wood:- Steico Celenit Tectum Homasote Flex 50 Germany Polyester: Caruso Isobond Autex akotherm Sintherm Martini, Australia Greece Alpha Acoustiki https://alphacoustic.com/en/ They sell the raw 34KG Polyester Batts 120x60x5 cm and other sizes afaik. Another EU source of Poly http://www.eurokustik.com/english/ec...n-sp50d40.html Fibralco, Greece Naturtherm Isofloc Hemp, Italy Biofib, France Cotton: UltraTouch http://www.soundproofcow.com/product...oustic-cotton/ SheepsWool Hemp Thermo Hemp 045 acoustic absorption figures http://www.babic.com/TEMP/SCHALL_Englisch.pdf for the 160mm version the result according to ISO11654: • 125Hz 0,85 • 250Hz 1 • 500Hz 1 • 1000Hz 1 • 2000Hz 1 • 4000Hz 1 Enjoy, DD