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Nimbus GII (G2)

 

Nimbus GII (G2)

The most widely used product of its type being very light and malleable yet offering outstanding thermal performance.

Supplied in maximum size of 1220 x 1250 mm or cut to your requirements.

Material Properties:

Physical Construction:                   double aluminium sheet, double formed
Material:                                           0.3 & 0.125mm 1050A ‘O’ grade aluminium
Material Thickness:                       0.43mm
Product Thickness:                        5.25mm
Area Density:                                  1.69 kg/m2

Thermal Conductivity @ 150C based on BS874 part 2 ‘Guarded Hot Plate Method’ 0.27 W/mK
hot plate temperature drop @ 150C as per SAE J1361 ‘Hot Plate Test’ 72.3C

Internal Exhaust Test: (source/receiver distance 25mm, source/shield hot face distance 12.5mm
Receiver: black painted 2.6mm steel, sample size: 25 x 8cm, receiver size: 15 x 10cm,
source running at constant power) horizontal flat sample.

All temperatures in degrees Centigrade.

TESTS:

no shield:

source 300C receiver 144C
source 500C receiver 274C

new Nimbus G2:

source 328C receiver 50C
source 565C receiver 85C

Nimbus G2 accelerated salt spray to ASTM G85: salt water acetic acid test
source 349C receiver 55C
source 560C receiver 87C

Nimbus G2 dirt impinged: shield hot face coated with ‘standard’ dirt mixture at approximately 60gsm
source 286C receiver 63C
source 493C receiver 109C

surface emissivity @ 150C
new:                                  0.15
heat aged @ 300C:        0.2
accelerated salt spray:  0.34

Acoustic: noise generated from supported 30 x 21cm flat sample by 0.9g steel ball
dropped from 50MM
impact noise, 0.6 embossed aluminium:             101 dB(A)
Nimbus G2                                                                 90.8 dB(A)
attenuation as per Iveco 18-8304 part 4.15         6.1 dB(A)

Mechanical: stone impingement as per SAE J4006B (10 chips, 1-3mm diameter)
180 degree peel strength: 1.4 N mm
tensile strength parallel to primary corrugations (x)     60 MPa
tensile strength parallel to secondary corrugations (y) 40 MPa
tensile modulus x direction (primary)                               71.5 MPa

fully recyclable

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