Anechoic Wedges ITEM# THICKNESS     SIZE   125 250 500 1K 2K 4K NRC       ANC-2002 2" 24" x 48" .03 .31 .81 1.02 1.01 .96 .80 ANC-2003 3" 24" x 48" .13 .74 .1.26 1.18 1.12 1.03 1.10 ANC-2004 4" 24" x 48" .33 1.12 1.32 1.39 1.19 1.12 1.26                     FIRE RATINGS Flammability: UL94HF-1 , Flame Spread: 10, Smoke Density: 50

Acoustic Wedges Soundproofing Material

It is the most popular industrial noise source absorber ! The featured contour profile helps trap industrial sound sources in their wake! The open cell structure and surface space of the foam helps to maximize your echo drop This foam dissipates up to 80% of unwanted sound. Available in 2" 3" and 4"

Installation Instructions:  The standard installation technique includes adhering these panels directly to any smooth wall service with a calking gun and any silicone adhesive. One tube of glue for every four sheets or one tube for every 32 sq. ft. Also, adhering the foam to ply wood first, and then bolting the ply wood to the wall provides mobility of the material.

Also mounting the foam on ply wood design to "freestand" near a noise source can give you a portable noise control screen that can be moved out of the way.

FREQUENCY (Hz)	125	250	500	1K	2K	4K	NRC
ANC-2002 (2-inch)	.15	.31	.73	1.04	1.08	1.12	.80
ANC-2003 (3-inch)	.17	.50	.91	1.08	1.04	1.10	.90
ANC-2004 (4-inch)	.32	.93	1.43	1.33	1.29	1.21	1.25