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Aluminum vs. Steel Performance Tests

PVDF finishes will meet the following performance criteria:

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Property Result - Aluminum Result - Steel Test Designation
60° Specular Gloss: 25-40 25-40 ASTM D 523
Pencil Hardness: HB-2H HB-2H ASTM D 3363
NCCA 11-12
Flexibilty: T-Bend 2-T (1) 2-T (1) ASTM D 4145, (NCCA 11-19)
No cracking or tape removal of film
Mandrel No cracking No cracking ASTM D 522
180 bend around 1/8" mandrel
Adhesion: Impact Acceptable (2) Acceptable (2) ASTM D 3359, (NCCA 11-5)
Reverse Impact Acceptable (2) Acceptable (2) ASTM D 2794, (NCCA 11-6)
Abrasion: Falling Sand 50 liters minimum 50 liters minimum ASTM D 968
Transit No disfigurement No disfigurement Method A
Acid Pollutants: No effect No effect ASTM D 1308, Proc. 6.2
10% Muriatic acid, 15 min.
No effect No effect ASTM D 1308, Proc. 6.2
20% sulfuric acid, 18 hrs.
<5 u. color change Hunger ΔE units <5 u. color change Hunger ΔE units AAMA 2605, TEST # 7.7.3.3
70 nitric acid vapors, 30 min.
Acid Rain Test: 10 cycles minimum
No objectionable color change
10 cycles minimum
No objectionable color change
KESTERNICH
Sulfur dioxide cyclic test
Accelerated Tests:
Weatherometer, 3000 hrs. exposure Acceptable (3) Acceptable (3) ASTM D 822, G 155
Weatherometer
Dew Cycle Weatherometer, 500 hrs. exposure Acceptable (3) Acceptable (3) ASTM D 3361
Humidity, 100% relative humidity @ 95°F. Passes 3000 hrs. (4) Passes 1500 hrs. (4) ASTM D 2247
Salt Spray, 5% salt fog @ 95°F. Passes 3000 hrs. (5) Passes 1000 hrs. (5) ASTM B 117 (NCCA 111-2)
Cyclic Salt Fog/UV Exposure Test Passes 2016 hrs. (6) Passes 2016 hrs. (6) ASTM D 5894