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