Electrophoretic coating for automobile body industry
Product Introduction
| HLS-5701LB/HLS-5750 Gray Cationic Epoxy Electrocoat for auto is the 7th generation electrophoretic coating researched and developed by HLS Paint (Shanghai) Co., Ltd. in cooperation with Germany HS International Chemical Industry Group. |
| 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:
| High throwing power, internal and external uniformity. |
| Good stability of bath can adaptable for a longer updating cycle |
| High throwing power, internal and external uniformity. |
| Suitable for automotive, cab, car, bus, truck, trailer and so on. |
Main ingredients
| Pigment |
carbon black, kaolin, antirust pigment |
| Solvent |
alcohol ether |
| Additives |
surface active agent, prevent shrinkage cavity agent |
The main supplier
| Material name |
Supplier |
| Bisphenol A epoxy resins |
Formosa Plastic Group / Kukdo / Dow Chemical |
| Polyisocyanates |
Bayer |
| Amine hardendner |
INTERSCAN / Huntsman Corporation |
Bath on site management project
Good bath data and coating quality, from the strict parameters management and maintenance of equipment, production line according to its own reality time situation, can have different management project and specifications, recommend the construction parameters see the table below for reference:
| Classification |
Project |
Control Data |
Testing frequency |
| New bath |
Anolyte |
| Electrophoresis tank |
Ratio |
1:4 |
-- |
|
| Ripening time |
24-48 |
-- |
|
| Solid ( 120 ℃ /1h ,% ) |
18±2 |
-- |
once a day |
| PH |
5.8-6.2 |
2.0-3.5 |
once a day |
| Conductivity ( μs/cm ) |
1200±400 |
2000±1000 |
once a day |
| P/B |
0.25-0.39 |
once a week |
| Throwing power (Four-box method), ≥ |
50% |
once a year |
| Solvent content (%) |
0.8-1.5 |
once a week |
| Liquid level Fall head (cm ) |
10-15 |
once a day |
| ED voltage( V ) |
0-300 |
once a day |
| Break voltage ( V ) |
≥350 |
once a week |
| Bath temperature ( ℃ ) |
30±2 |
once a day |
| ED time( S ) |
60~180 |
once a day |
| UF － 1 Tank |
Solid content (%) |
≤2.0 |
once a day |
| UF － 2 Tank |
Solid content (%) |
≤0.8 |
once a day |
| Baking furnace |
Provisions furnace temperature( ℃ ) |
180-200 |
once a day |
| Curing conditions |
Drying temperature |
(170-180) ×( ℃ 15-20)min (With content holding time) |
once a day |
Storage, packaging and transportation :
This product is a water-borne industrial coatings, non-hazardous, non-inflammable and explosive products; transportation to prevent direct sunlight, avoid freezing (>5℃ ); Packaging for 50/60/200L Plastic barrel; in the transport and storage of drums should be maintained clean, avoid charging the dirt brought in on drums during filling tank, again checked and confirmed that the quality of products, including paste resin, emulsions and additives should be indoor storage, good ventilation, dry, protect against freezing and overheating, the storage temperature should be controlled at 5～35℃, products from the date of production, over shelf, experimentation is required to determine whether can continue to use.
