Test Item

Standard

Result

Appearance

The film should meet the chromatic aberration interval of standard specimens, and be neat and smooth.

Conforms

Solid content (wt%,GC)

≥10-13% of pigment

10.5%

Drying time (180 ± 2oC, n)

≤1 hour

Conforms

Flexibility (mm)

≥1.0

1.0

Impact strength (kg. cm)

≥50

50

Corrosion resistance

the testing period consists of immersing the film in 3% of salt solution for 7 hrs, and then exposed in air for 17 hs. After treated for three periods, the film should have no appreciable change.

Conforms

Ph value

solution with solid content of 8-15%. Its PH should be 7-8.

7.5

Electrophoretic property

(30-40 V/2 min; 180± 2oC/1 h.) It should be neat and smooth.

Conforms

Solid content %

≥70

Conforms