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Series 20

Test results

Checked on a chromated aluminum test panel which is 0.7 [mm] thick.
Cure conditions according to the cure curves.

Test results
Test Method

Series 20
Smooth glossy
Series 20
Smooth Semi gloss
Series 20
Smooth matte
Film thickness
ISO 2360
60-80 µm
60-80 µm
60-80 µm
Gloss -60 oc
ISO 2813
80-95
70 ± 5
25 ±5
Impression hardeness
ISO 2409
0
0
0
Mandrel bending test
ISO 1519
≤ 3 [mm]
≤ 4[mm]
≤ 5[mm]
Cupping test
ISO 1520
≥ 8 [mm]
≥ 5 [mm]
≥ 5 [mm]
Impact test
20 Inch-pound
ASTM D 2794
no appearance of cracks down to the substrate
no appearance of cracks down to the substrate
no appearance of cracks down to the substrate
Mortar resistance
ASTM D 3260
ok
ok
ok
Drill mill test
 
ok
ok
ok
Kesternick-test 30 cycles
Iso 3231
≥4
≥ 4
≥ 4
light fastnes
EN ISO 105-B02
≥ grade 7
≥ grade 7
≥ grade 7
Humidity resistance 1000 [h]
ISO 6270-1
max. blistering ≤ 1[mm]
max. blistering ≤ 1[mm]
max. blistering ≤ 1[mm]
salty spary resistance 1000 [h]
ISO 9227
max. undercutting ≤ 1[mm]
max. undercutting ≤ 1[mm]
max. undercutting ≤ 1[mm]


Test 7 Days 1 Month 3 Months 6 Months 9 Months 12 Months
Ammonia Solution 10%
Sodium hydroxide 10%
Sodium Carbonate 10%
Acetic acid 10%
Lactic acid 10%
Phosphoric acid 10%
Nitric acid 10%
Hydrochloric acid 10%
Sulfuric acid
Ehanol
Isopropyl alcolhol
Ethylene-glycol-monoe
Toluene
Xylene
Diesel
FAM-test gas
Petroleum
Seawater

The essertion as the chemical resistance of a powder coating after exposure to various chemicals over different time periods is done visually and expressed in three levels:

GOOD Powder coating does not exhibit any visual defects and appears unharmed
FAIR Powder coating shows changes, e.g. in color, gloss, swelling marks, etc.
BAD powder coating has delaminated during exposure, It proves not to be suited fro permanent exposure to this chimical.
TEST CONCLUDED  

 




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