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.
