ABSORPTIVE TYPE

Effective and customizable noise abatement systems for a wide variety of applications

FRONT PANEL PERFORATION TYPES

GALLERY TYPE

PUNCHING TYPE

RIBBED SHELL PUNCHING TYPE

HIGH PERFORMANCE TYPES

DOUBLE FACE TYPE

HIGH SPEED RAILWAY TYPE

SPECIFICATIONS

Component	Material Selection	SPEC
Front Plate	Aluminum, High Anti Corrosion Steel	0.6T ~ 1.2T
Rear Plate	Galvanized steel, High Anti Corrosion Steel	1.0T ~ 1.6T
Side Plate	Galvanized steel, High Anti Corrosion Steel	1.2T ~ 1.6T
Rivet Fastener	Blind rivet: Aluminum	4ｘ10
Absorptive infill	Glass wool, Polyester, Mineral wool	Varying thickness and densities
Encapsulating Film	PE, PVF, ETFE
Finish	PVDF, Powder Coating

	Length (mm)	Width (mm)	Thickness (mm)
SIZE	1960 / 2960 / 3960 / 400-5000	500	60~100T

TESTED PERFORMANCE

Sound absorption and sound insulation tests will be conducted by the Korean Marine Equipment Research Institute, an accredited and authorized testing laboratory by KOLAS (a member of ILAC MRA)

Sound Absorption Performance Test Standard：ISO 354:2003 and ASTM C 423:17

NRC = Up to 1.05

(NRC 0.85↑,1 Grade)

	100hz	250hz	500hz	1000hz	2000hz	2500hz	4000hz	5000hz	NRC
Gallery	0.13	0.60	1.01	0.96	0.87	0.81	0.74	0.68	0.86
Punching	0.17	0.53	0.91	1.04	1.00	1.02	1.10	1.05	0.87
Ribbed Shell	0.14	0.65	0.95	1.06	0.99	0.98	0.93	0.86	0.91
Double Face	0.35	0.43	0.85	1.07	1.08	1.07	1.05	1.05	0.86
Hiding	0.13	0.46	0.93	1.06	0.99	0.98	0.93	0.86	0.86
High Speed	0.38	0.93	1.08	1.08	1.11	1.08	1.10	1.12	1.05

Sound Insulation Performance Test Standard：ISO 10140-2:2010 and ASTM E 413：2016

STC = Up to 45

(Grade: 500Hz : 25↑1000Hz : 30↑)

	100hz	250hz	500hz	1000hz	2000hz	2500hz	4000hz	5000hz	STC
Gallery	20.3	22.6	33.6	35.1	39.8	38.8	40.7	41.7	32.8
Punching	12.2	23.9	32.0	33.4	36.0	35.0	37.8	37.2	31.3
Ribbed Shell	21.6	24.2	32.5	34.2	38.1	37.3	40.1	40.0	32.3
Double Face	20.8	26.3	37.5	42.5	46.0	46.3	47.5	47.6	38.1
Hiding	16.3	22.5	28.8	39.4	44.9	42.9	45.7	46.5	33.9
High Speed	20.8	27.3	37.5	42.5	46.0	46.3	47.5	48.6	45.0