Duct Liner
KCL

KCL Premium

Acoustics
Fire resistance
HVAC
Sustainable
KCL (NRC: 0.8 @ 25mm) Premium provides robust thermal and acoustic insulation to metal air ducts and HVAC equipment. KCL can also be used inside ventilation units or for plenum boxes and for acoustic silencers.
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Key Facts

  • Superior acoustic performance
  • Robust liner for easy cleaning
  • Excellent thermal performance
  • Excellent fire safety
  • Environmentally friendly: made from abundantly available, non-strategic materials.
  • Suitable for a wide variety of applications (flexible, semi-rigid, rigid and extra-rigid)
  • Address a variety of performance requirements (wide range of facing materials)
  • Easy to cut and install, minimum wastage on-site
  •  Dimensionally stable
  • Complies with international standards

Product description

Besides thermal insulation, HVAC metal ductworks often require acoustic insulation to prevent noise transmission and improve comfort. Special insulation such as KCL slabs or blankets are fixed to the internal walls for effective reduce the noise.

KCL Premium is used to line air conditioning ducts, walls and/or ceilings of acoustically sensitive areas to provide efficient sound insulation for any variety of structure, and/or sensitive facilities as home theaters or studios, curtain walls.

KCL Premium is a highly efficient acoustic material, produced from strong resilient glass fibers firmly bounded together with a thermosetting resin. KCL Premium is faced with a black, strong, durable, dimensionally stable woven glass fabric. KCL Premium is especially designed to provide exceptional sound absorption to acoustically sensitive environments and/or equipment as air-conditioning equipment, auditoriums, theatres, studios, acoustical building assemblies, curtain walls

Acoustical Performances

KCL is especially designed to provide exceptional sound absorption to acoustically sensitive environments and/or equipments as air-conditioning equipments, auditoriums, theatres, studios, acoustical building assemblies, curtain walls.

Thickness (mm) Absorption Coefficient of one-third octave band center frequencies (Hz)
125 250 500 1000 2000 4000 NRC
25 0.12 0.32 0.7 0.93 0.95 0.99 0.75
50 0.27 0.69 1.01 1.07 1.06 1.05 0.95

Test in accordance with ASTM C423 using Type A mounting as per ASTM E795. These are typical values subject to normal manufacturing and testing variances

Technical description

Characteristic

Symbol

Unit

Quantities and measured values

Standard

Thermal Conductivity

T

(°C)

25

 

ASTM C518

l

( W /m·K )

0.033

Density

Rolls

ρ

(kg/m3)

32  (Tolerance: ± 15%)

ASTM C167

Dimensions

L, W, T

(m)

(6.0 – 36.0), (1.2), (0.012 – 0.075)

Density

Slab/Boards

ρ

(kg/m3)

32  (Tolerance: ± 15%)

ASTM C303

Dimensions

L, W, T

(m)

(1.0  - 2.4), (1.2), (0.013 – 0.150)

Facing

Faced with Black Glass Fabric (BGF)

 Reaction to Fire Class (Unfaced)

 Euro-class A1

Non-combustible

EN 13501-1

ASTM E136

Surface Burning Characteristics

-Flame Spread Index

-Smoke Developed Index

 

≤ 25

≤ 50

ASTM E84

Water Vapour Sorption

(%)

< 1 (by volume)

ASTM C1104

Maximum Service Temperature 

Min.

Max. (Fiber)

Max. (Facing)

°C

 

-50

+232

+100

ASTM C411

Fungi Resistance

Do not promote fungi growth

ASTM C1338

Stress Corrosion to Austenitic Stainless Steel.

No Cracking observed

ASTM C871

Corrosiveness to Steel

No Corrosion

ASTM C665

Ozone Depletion Potential (ODP)

‘0’

-

Global Warming Potential (GWP)

<5

-

Rigidity

Semi-Rigid/Flexible

ASTM C1101

Noise Reduction Coefficient (NRC Value)

0.45 – 1.05

(Depends upon thickness)

ASTM C423

Standard Compliance

ASTM C1071 Type I [Rolls]

ASTM C 1071 Type II [Slabs]

Product variations

Articles information
Name NRC Density [kg/m3] Facing NRC Thml resistance Packaging (Roll) Thickness (mm) Width (m) Lenght (m)
NameKCL Premium NRC0.9 Density [kg/m3]24 FacingBlack Glass Fabric NRC Thml resistance1.43 Packaging (Roll)1 Thickness (mm)50 Width (m)1.2 Lenght (m)20
NameKCL Premium NRC0.8 Density [kg/m3]24 FacingBlack Glass Fabric NRC Thml resistance0.71 Packaging (Roll)12 Thickness (mm)25 Width (m)1 Lenght (m)1.2
NameKCL Premium NRC Density [kg/m3]24 FacingBlack Glass Fabric NRC 0.8 Thml resistance0.71 Packaging (Roll)1 Thickness (mm)25 Width (m)1.2 Lenght (m)20
NameKCL Premium NRC0.8 Density [kg/m3]24 FacingBlack Glass Fabric NRC Thml resistance0.71 Packaging (Roll)1 Thickness (mm)25 Width (m)1.2 Lenght (m)20