PVDF Color Coated Aluminum Coil

Substrates

Aluminium (AA1100, 3003, 3004, 3105, 5006, 5052, 8011, etc), etc.

Thickness

0.08-1.5mm

Width

＜1800mm

Coils core diameter

150mm ,405mm, 505mm, 508mm, 510mm

Coating thickness

PVDF >=25micron POLYESTER>=18micron

Color standard

E < 2 or it is not obvious by eyeballing

Pencil hardness

> 2HB

Coating adhesive

not lower than first grade Impact: no any crack (50kg/cm, ASTMD-2794:1993) 

Bend strength

>100 times

Boiling point

no any distortion and color change (in the 99 more or less 1 degree 

water, then cooling 2 hours) 

Corrosive

surface deep in the 5% muriatic acid and 5% NaCL, interior deepin the 2% muriatic acid and 2% NaCL, after 48 hours, no change

Packing

 Inner Core: Paper Tube

 Outer: Paperboard

 Wooden Pallet

Item    

Test Item

 Standard

 National standard

 Test Result

1

Color Difference

ECCA T3

 △E≤2.0

 △E≤1.5

2

Color Difference

ECCA T2

 ≤10

 ≤5

3

Coating Thickness

ECCA T1

Two layers Min 23μm
Three layers Min 30μm

≥25μm
≥34μm

4

Pencil Hardness

ASTM D3363

≥HB

HB

5

T-bend

ASTM D4145

≤2T

≤2T

6

Adhesion

ASTM D3359

Grade 0

Grade 0

7

Impact

ASTM D2794

≥50kg.cm

 ≥50kg.cm

8

Boiling water Resistance

GB/T17748

 2h no change

4h No change

9

Solvent Resistance

ASTM D2248

 200 times paint remaining

500 times no break

10

Acidity Resistance

ASTM D1308

5%HCL 24hrs No change

No change

11

Alkali Resistance

ASTM D1308

5%NaOH 24hrs 
No change color△E≤2.0

No change

12

Nitric acid Resistance

AAMA620

 △E≤5.0

 △E≤5.0

13

Oil Resistance

ASTM D1308

20#oil 24hrs No change

No change

14

Salt Spray Resistance

ASTM B117

4000hrs≤Grade 1

 No Change

15

Abrasion resistance

ASTM D968

≥5L/μm

≥5L/μm

16

Dirt Resistance

GB/T9780

≤5%

<5%

17

Color retaining

----

4000 hrs△E≤4.0

4000 hrs△E≤3.0

18

Gloss weaken Level

----

4000 hrs≤Grade 2

4000 hrs ≤ Grade 2

19

Chalking

GB/T16259

4000 hrs No change

4000 hrs No change