Isn't Fiberglass Fabric the ideal Fabric to use for traps?

gsjim · 17th November 2009

Since fiberglass' NRC score is so high, why don't companies use fiberglass fabric instead of the usual burlap & micro suede for panels?

NRC comparison score chart:
Noise Reduction Coefficients (NRC) Ratings for Common Building Materials & Products

Fiberglass cloth:
PBE 9MS FE912 - fiberglass fabric

Ethan Winer · 17th November 2009

Quote:

Originally Posted by gsjim

why don't companies use fiberglass fabric instead of the usual burlap & micro suede for panels?

Because the amount of absorbing fiberglass present in fabric is too small to matter.

--Ethan

Glenn Kuras · 17th November 2009

I think that fiberglass fabric would be to rigid. The key is to use fabric that lets the sound pass through it easily. You can use the "blow test", by holding it up to your mouth and blowing though it.

gsjim · 18th November 2009

if it's not tested.. it's a theory

btw honeycomb nanotube technology should be looked into.. they say it offers 30% noise reduction
Institute of Nanotechnology :: View topic - Honeycomb Nanotube Material Offers Better Noise Reduction

I wonder if a "saser" (sound laser) can somehow help reduce noise

Brainchild · 18th November 2009

The parallel-channel model they're pursuing sounds like the super-simplified cell-structure models on which fibrous materials' pore shape models are subsequently based (with massive attendant complications).

Rather than waiting for "superalloy micro honeycomb using a nickel-base superalloy" or sound lasers, I think I'll stick with fiberglass for the time being.

Glenn Kuras · 18th November 2009

Quote:

Originally Posted by gsjim

if it's not tested.. it's a theory

e

You are more correct then what you think.

17th November 2009	#1
gsjim Gear Head Join Date: Oct 2009 Location: CA Posts: 72 Thread Starter	Isn't Fiberglass Fabric the ideal Fabric to use for traps? Since fiberglass' NRC score is so high, why don't companies use fiberglass fabric instead of the usual burlap & micro suede for panels? NRC comparison score chart: Noise Reduction Coefficients (NRC) Ratings for Common Building Materials & Products Fiberglass cloth: PBE 9MS FE912 - fiberglass fabric

17th November 2009	#3
Glenn Kuras Gear Guru Join Date: Jul 2005 Location: Atlanta, GA Posts: 11,003	I think that fiberglass fabric would be to rigid. The key is to use fabric that lets the sound pass through it easily. You can use the "blow test", by holding it up to your mouth and blowing though it. __________________ Glenn Kuras GIK Acoustics USA GIK Acoustics Europe 770 986 2789 (USA) +44 (0) 20 7558 8976 (UK) See the NEW Soffit Bass Trap

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18th November 2009	#4
gsjim Gear Head Join Date: Oct 2009 Location: CA Posts: 72 Thread Starter	if it's not tested.. it's a theory btw honeycomb nanotube technology should be looked into.. they say it offers 30% noise reduction Institute of Nanotechnology :: View topic - Honeycomb Nanotube Material Offers Better Noise Reduction I wonder if a "saser" (sound laser) can somehow help reduce noise

18th November 2009	#5
Brainchild Lives for gear Join Date: Jan 2009 Location: USA Posts: 893	The parallel-channel model they're pursuing sounds like the super-simplified cell-structure models on which fibrous materials' pore shape models are subsequently based (with massive attendant complications). Rather than waiting for "superalloy micro honeycomb using a nickel-base superalloy" or sound lasers, I think I'll stick with fiberglass for the time being.