REGULAR ALUMINUM COMPOSITE PANEL (LDPE. Core)

REGULAR ALUMINUM COMPOSITE PANEL (LDPE. Core)

Physical and Mechanical Properties

  1. Panel Weight: 3 mm

 

3 mm     –             4.10 + 0.5 kg / m2
4 mm    –              5.00 ± 0.5 kg / m2
5 mm    –              5.90 ± 0.5 kg / m2
6 mm    –              6.85 ± 0.5 kg / m2
  1. Mechanical Properties:

 

Test Item Standard WELLBOND Actual and Test Value
Bending Strength ≥ 100 MPa 122 MPa
Bend Elastic Module ≥ 20, 000 MPa 30, 200 MPa
Through Resistance, ASTM D732 ≥ 9.0 kN 10.9 kN
Shear Strength, ASTM D732 ≥ 28.0 Mpa ≥ 35.2 Mpa
180 Degree Peeling Strength, ≥ 7.0 N/mm 12.0 N/mm
Temperature Change Resistance No change No change
 Coefficient of Thermal Expansion, ASTM D696 ≤ 0.00004 C-1 ≤ 0.0000246 C-1
 Heat Deflection Temperature, ASTM D648 ≥ 105 C 110 C

3. Coating Performance

Test Item Standard Index WELLBOND Actual and Test Value
Coating Thickness ≥25µm ≥28 µm
 

 

Gloss Deviation

 

gloss ≥ 70, max permissible
deviation ≤ 5
deviation = 1.0
gloss<70, max permissible
deviation ≤10
Color Deviation, ASTM D2244 < 2.0 units < 2.0 units
Pencil Hardness, ≥HB 3H
Coating Flexibility, ASTM D4145 ≤2T 1T
Adhesion Grade, in grid way: Grade 0
in circle way: Grade 1
in grid way: Grade 0
in circle way: Grade 1
Impact Resistance, No peel-off,
no crack at 50 kg.cm
No peel-off, no crack
Abrasion Resistance, ASTM D968 ≥ 5 L/um ≥ 7.7 L/um
Hot Water Resistance No color change, crack & peel-off at 98~100C
in 120 min
No color change, no crack &
no peel-off
Stain Resistance ≤ 15% 1.03%
Acid Resistance, ASTM D1308 No change No change
Alkali Resistance, ASTM D1308 No change No change
Oil Resistance, ASTM D1308 No change No change
Solvent Resistance, ASTM D2248 No change No change
Brush Resistance ≥10000 times of no change No change
Salt Fog Resistance, ASTM B117 ≥ Grade 2 Grade 1
Aging and Weather Resistance
Color Deviation
Gloss Retention Grad.
Other Aging Performance
≤ 3.0
≥ Grade 2
Grade 0
1.9
Grade 1
Grade 0

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