Advantages
- Complete and uniform coverage of complex shapes, including edges and corners, hanger brackets, ground pads, and tank bottoms.
- Access into partially closed areas, such as inside the hanger brackets.
- High solids film eliminates sagging problems.
- Minimal organic solvent content.
ANSI C57.12.28 Performance Requirements
ANSI Standard C57.12.28 served as the benchmark for performance on the tests listed below. The test results clearly indicate the two-coat cathodic electrodeposition to be a leader in corrosion resistance, while maintaining excellent performance in all areas of the ANSI standard. "2CEC" passed all the tests listed here.
Salt Spray Test
Panels are scribed to bare metal and tested for 1000 hours in a 5% salt spray per ASTM B117-85E1 and evaluated per ASTM D1654-79A. Loss of adhesion from bare metal must not exceed more than 1/8" from the scribe. Underfilm corrosion must not exceed more than 1/16" from the scribe.
Crosshatch Adhesion Test
Panels are scribed to bare metal with a crosshatch pattern and tested per ASTM D3359-83. There must be 100% adhesion to the bare metal and between layers.
Humidity Test
Panels must be tested for 1000 hours in accordance with ASTM D2247-86A. There must be no blisters.
Impact Test
Test panels were impacted per ASTM D2794-84 at 160 in.- lbs. of impact. There must be not chipping of the paint on the impact side of the test panel.
Oil Resistance Test
Oil resistance testing is conducted at both 100°C and ambient for 72 hours. There must be no apparent changes, such as color shift, blisters, loss of hardness, or streaking.
Ultraviolet Accelerated Weathering Test
Test panels must be exposed for 500 hours in accordance with ASTM G53-84. Loss of gloss must not exceed 50% of the original gloss as described in ASTM D523-85E1.
Abrasion Resistance - Taber Abraser Test
The total coating system must be tested using a CS-10 wheel, 1000-gram weight, in accordance with ASTM D4060-84. The number of abrasion required to wear the coating through to the substrate must be at least 3000 cycles.
The ANSI C57.120.28 test results clearly indicate the twocoat cathodic electrodeposition is a leader in corrosion resistance while maintaining excellent performance in all areas of the ANSI standard. The two-coat cathodic electrodeposition maintains consistent, uniform paint coverage over the entire product, with no runs or sags, and offering a superior coating on distribution transformers.
