Product Introduction
HLS-1701ELB/HLS-1701EG Black Cationic Epoxy Electrocoat for auto is a new generation electrophoretic coating researched and developed by HLS Paint (Shanghai) Co., Ltd.
It represents modern technology of cathodic electrophoretic coating that is environment-friendly with high property and low cost. Such coating does not contain heavy metal like lead, tin, cadmium and mercury etc. It is a two-component, water-dispersed resin,meanwhile, it took in features of previous products, and can adapt galvanized steel sheet perfectly, almost can be applied to foundation coating of all metal, such as: cold and hot rolled steel sheet, galvanized steel sheet, aluminum products, zinc-aluminum alloy sheet and stainless steel sheet etc.
This product features shown below:
| The bath has strong anti-shrinkage and anti-pollution ability. |
| Strong anti-corrosion properties, good salt spray resistance workpiece edge. |
| Ideal for high demand for salt spray industry, such as pipe trench, auto chassis parts, castings |
The main component Matrix resin:
Neutralizing agent: organic acid
Solvent: alcohol ether
Matrix resin: polyurethane modified epoxy resin
Product quality data
| Project | Technical data | Test standard |
Resin
(HLS-1701ELB) | Black Paste (HLS-1701EG) |
| pH | 25℃ | 6.0±1.0 | —— | GB/T 9724 |
| Conductivity | 25℃, μs/cm | 1400±600 | —— | HG/T 3334 |
| Appearance | —— | Milky white liquid | Black viscous liquid,no agglomeration | Visual |
| Storage stability |
No stratified state, and there were no obvious difference compared to before storage | In 5-35 ℃ temperature 6 months |
Note: pH, conductivity measurement in the resin/pure water = 1:1 dilution
Filling tank proportion and method:
⑴ Ripening conditions
Sample quantity: 3000～5000g
Container: 5L (Diameter 16cm)
Tank temperature:28-30 ℃
Time: 24～48Hr
Mixed conditions: impeller diameter 8cm (speed 200rpm)
Product film performance:
| Project | Indicator | Test standard |
| Appearance | Normal / abnormal | Normal | Ocular estimate |
| Hardness | ≥ | 2H | GB/T 6739 |
| Cup drawing | mm ,≥ | 6 | GB/T 9753 |
| Adhesion | Level | 0 | GB/T 9286 |
| Flexibility | mm | 1 | GB/T 1731 |
| Impact | kg·cm | 50 | GB/T 1732 |
| Gloss | 60 | 50-80 | GB/T 9754 |
| Water resistance | h,(23±2)℃,≥ | 480 | GB/T 1733 |
| Acid resistance | h,(50g/L H2SO4),≥ | 72 | GB/T 9274 |
| Alkali resistance | h,(50g/L NaOH),≥ | 48 | GB/T 9274 |
| *Salt spray resistance | h,(film thickness ≥ 20μm) ,≥ | 1200(Edge grade 1) | GB/T 1771 |
| Stone strike resistance | Level | 1.0 | DIN55995-1-2001 method B |
* Note: The substrate use the Bonder standard phosphating steel panel, crossed out unidirectional expansion eclipse ≤ 2mm.
Customers in the Automotive chassis industry:
