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SH-360 Cathodic Two-Component Electrophoretic Coating
SH-360 Cathodic Two-Component Electrophoretic Coating
category：
Waterborne electrophoretic coating
Product Description
SH-360 Cathode Two-component Electrophoretic coating
I. Product Overview
SH-360 Epoxy Black / Gray cathodic electrophoretic coating is… Hubei Longsheng Sihai New Materials Co., Ltd. The seventh-generation electrophoretic coating independently developed by the limited company contains no lead. 、 Heavy metals such as tin, cadmium, chromium, and mercury, with the exception of tin. Adapt to environmental protection requirements ；
II. Original paint performance Indicator
| Project |
Technical indicators |
Inspection criteria |
||
| Emulsion |
Black Color paste |
Gray paste |
|
|
| Appearance |
Milky white liquid |
Black A viscous, colored liquid with no clumps. |
Gray viscous liquid, free of lumps. |
Visual estimation |
| Solid content ( 120℃ ，1h ), % |
≥ 35 |
≥ 45 |
≥ 53 |
GB/T6751 |
| Fineness , mu m |
---- |
15 |
15 |
|
| pH value ( 25℃ ) |
6.8±0. 5 |
4.8±0. 5 |
4.8±0. 5 |
pH meter |
| Electrical conductivity ( 25℃ ), μs/cm |
1500 ± 500 |
---- |
---- |
HG/T3335 |
| Storage stability ( 5-35℃ ) |
No delamination; no significant differences compared with the state prior to storage. |
Visual estimation |
||
Note: When measuring pH and conductivity, follow Resin /Pure water = 1: 1 Dilution
Three , Mixing ratio and method
Recommendation Proportion: Color paste: Emulsion: Pure water =1:4:5 or 1:5:6
Four , On-site Tank Solution Management Project
Excellent bath‑solution parameters and coating quality stem from rigorous on‑site process‑parameter control and equipment maintenance. Depending on their specific operating conditions, production lines may adopt different management procedures and specifications. The recommended application parameters are listed in the table below for reference.
| Category |
Project |
Control indicator |
|
| New plating solution |
Anolyte |
||
| Electrophoresis tank |
Proportioning |
1:4:5/1:5;6 |
-- |
| Ripening time ， h |
48h |
-- |
|
| Solid content ( 120℃ ，1h ), % |
16±2 |
-- |
|
| pH value |
5.6-6.2 |
2.0-3.5 |
|
| Electrical conductivity ， microseconds /cm |
15 00± 500 |
300 -8 00 |
|
| Yan Jibi |
0.25-0.35 |
||
| Penetration Power (Four-Box Method) cm, ≥ |
25 |
||
| L effect |
The horizontal surface is smooth and even, with no noticeable difference from the vertical surface. |
||
| Solvent content , % |
1.2-2.5 |
||
| Electrophoresis voltage , V |
0-300 |
||
| Breakdown voltage , V |
≥350 |
||
| Tank solution temperature , °C |
30±2 |
||
| Electrophoresis time , s |
60–180 |
||
| Drying oven |
Set furnace temperature , °C |
180–200 |
|
| Curing conditions |
Drying time ( 170±5℃) |
2 0 min (substrate holding time) |
|
Five 、 Product Coating Performance Specifications
| Project |
Indicator |
Inspection criteria |
|
| Appearance |
Smooth and even, free from defects such as pinholes and sink marks. |
Visual estimation |
|
| Hardness |
H, ≥ |
H |
GB/T6739 |
| Cupping |
mm, ≥ |
6 |
GB/T9753 |
| Adhesion |
level |
0 |
GB/T9286 |
| Flexibility |
mm |
1 |
GB/T1731 |
| Impact |
Kg.cm |
50 |
GB/T1732 |
| Luster |
600 |
≥50 |
GB/T9754 |
| Water resistance |
( 40℃ ), h, ≥ |
240 |
GB/T1733 |
| Acid resistance |
( 0.05N H2SO4) ， h, ≥ |
48 |
GB/T9274 |
| Alkali resistance |
( 0.1N NaOH) , h, ≥ |
72 |
GB/T9274 |
| Heat resistance |
40℃ × 98%, 240 h |
The expansion is not obvious. No delamination occurs during the adhesion test. |
GB/T 1740 |
| Gasoline resistance |
70# or 90#, 24h |
No bubbling, no wrinkling Rust-proof , does not fall off |
GB/T 9274-1988 |
| Drying Performance Test |
≥20 times |
No abnormalities on the coating surface. |
GB/T6753.2 |
| * Salt spray resistance |
(Thickness greater than 15 um) ,h, ≥ |
1000 |
GB/T1771 |
*Bonder-standard phosphated steel sheet, unidirectional corrosion spread ≤ 2 mm 。
Six , storage, packaging, and transportation
- Storage: It is recommended to store this product in a well-ventilated area at low temperature ( 5 ℃-3 5 °C) storage, Avoid the sun Light Direct sunlight . Product shelf life Six months; if the product is retested beyond this period and still meets the standards, it may continue to be used.
- Packaging: Standard packaging 20L Plastic bucket ， also Packaging can be customized upon request. ；
- Transportation: This product is a water-based coating. ， Non-flammable and non-explosive substances ， Store and transport as non-hazardous materials. During transportation, protect from direct sunlight and avoid freezing (＞ 5℃) 。
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Nancheng Chemical Industry Park, Zaoyang City, Hubei Province (Intersection of Xihuan 4th Road and Xiangxiang Road)
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