Acoustic Blankets quiet down sound-blasting booth.

A large plant that overhauls gas turbine parts has a sandblasting booth that radiated excessive noise from the metal walls.  Next to the booth were quiet assembly areas that were subjected to the noise

ANC-AB12 Acoustical Blankets were assembled around the walls and doors of the sandblasting booth.  The panels were fastened directly to the top of the metal booth and allowed to hang to the floor.

The production staff was pleased with the “significant noise reduction” from the booth and then started to attack other noise sources in the plant.

Noise Reduction
Decibel Reduction	Reduction Experienced by Ear
2	15%
4	23%
6	38%
8	48%
10	56%
12	63%
14	68%
16	75%
18	77%
20	81%

Noise Control Applications:

Typical uses include curtain panels in acoustical enclosures.  Also used as separator walls or divider partitions between noise sources.  Commonly used to line the perimeter walls of a building, or as a free-hanging noise barrier/sound absorber wall.

Acoustical Product Data:

• Vinyl coated fiberglass cloth faced 1” quilted fiberglass /
• 1lb-psf non-reinforced loaded vinyl barrier/
• Vinyl coated fiberglass cloth faced 1” quilted fiberglass

	Flammability	Class A:   Flame Spread: 22.78
		Smoke density: 30.56
	Nominal thickness	2.00 inch
	Temperature range	-20° to +180° F
	Standard width	48” wide
	Roll length	25’ long
	Weight	1.5 lb psf

Acoustical Performance:
Sound Transmission Loss

	OCTAVE BAND FREQUENCIES (Hz)
Product	125	250	500	1000	2000	4000	STC
ANC-AB12	12	16	27	40	44	43	29

ASTM E-90 & E 413
Sound Absorption data

	OCTAVE BAND FREQUENCIES (Hz)
Product	125	250	500	1000	2000	4000	NRC
ANC-AB12	.19	.99	.96	.80	.57	.33	.85

ASTM C 423