Regular Aluminum Composite Panel (LDPE,Core)

Physical and Mechanical Properties
Panel Weight:   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

Mechanical Properties

Test Item

Standard

WELLBOND Actual and Test Value

Bending Strength

≥ 2 100 Mpa

122 Mpa

Bend Elastic Module

≥ 2 20, 000 Mpa

30,200 Mpa

Through Resistance, ASTM D732

≥ 2 9.0 kN

10.9 kN

Shear Strength, ASTM D732

≥ 2 28.0 Mpa

≥ 35.2 Mpa

180 Degree peeling Strength

≥ 2 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

≥ 2 105 C

110 C

 

Coating Performance

Test Item

Standard index

WELLBOND Actual and Test Value

Coating Thickness

≥25μm

≥28μm

Gloss Deviation

gloss ≥ 70, max permissible deviation ≤ 5
gloss < 70, max permissible deviation ≤ 10

deviation = 1.0

Color Deviation. ASTM D2244

≤ 2.0 units

≤ 2.0 units

Pencil Hardness,

≥ HB

3H

Coating Flexibility, ASTM D414S

≤ 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 , crack & peel-off

Stain Resistance

≤ 15%

≤ 1.03%

Acid Resistance. ASTM D1308

No change

No change

Alkali Resistance, ASTM Dl308

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