ABSORPTIVE TYPE

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

FRONT PANEL PERFORATION TYPES

GALLERY TYPE

gallery type

PUNCHING TYPE

punching type

RIBBED SHELL PUNCHING TYPE

ribbed shell punching type

HIGH PERFORMANCE TYPES

DOUBLE FACE TYPE

double face type

HIGH SPEED RAILWAY TYPE

hich speed railway type

SPECIFICATIONS

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 Inll Glass wool, Polyester, Mineral wool Varying thickness and densities
Encapsulating Film PE, PVF, ETFE
Finish PVDF, Powder Coating (Light reectance 10% max)
Dampening Sheet Bitumen
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)

kolas_ilacmra
nrc

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
nrc_graph
stc

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
stc_graph
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