Solution for radiator electrodeposition coating
Product Introduction :
HS-5500LB/HS-5500 White epoxy acrylic cathodic electrophoretic
coating for auto is the 8th generation electrophoretic coating
researched and developed by HLS Paint (Shanghai) Co., Ltd. and get
the national invention patent and the Shanghai science and
technology commission of high-tech transformation project.
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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. The
coating that does not contain tin element meet the latest
environ-mental regulations of European Union, North America, Japan
and other requirements in advance, which is the inevitable trend of
future environ-mental coating and low cost; 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.
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This product features shown below:
High throwing power, good internal and external uniformity.
Simple control of bath and wide operation range is suitable for the
operation specification and site equipment for different customers.
Low curing temperature, coating yellow degeneration resistance is
good, suitable for electrodeposition primer, and then to spray or
paint coating process, such as: oil heater, radiator, heater, lamps
and lanterns, machinery, home appliances and hardware products and
other industries.
Main ingredients:
| Pigment: titanium dioxide, kaolin,antirust pigment |
| Neutralizing agent: organic acid |
| Additives: surface active agent, prevent shrinkage cavity
agent,resistance to yellowing agent |
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 | 1:4-5 | -- | |
| Ripening time | 24-48 | -- | |
| Solid ( 120 ℃ /1h ,% ) | 12±2 | -- | once a day |
| PH | 5.3-5.8 | 2.0-3.5 | once a day |
| Conductivity ( μs/cm ) | 900±400 | 1000±500 | once a day |
| P/B | 0.25-0.35 | once a week |
| 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( ℃ ) | 155-175 | once a day |
| Curing conditions | Drying temperature |
(150-170) ℃ ×(20-30)min (With content holding tim | once a day |
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)℃,≥ | 240 | GB/T 1733 |
| Acid resistance | h,(50g/L H2SO4),≥ | 24 | GB/T 9274 |
| Alkali resistance | h,(50g/L NaOH),≥ | 48 | GB/T 9274 |
| *Salt spray resistance | h,(film thickness ≥ 20μm) ,≥ | 600 | GB/T 1771 |
* Note: The substrate use the Bonder standard phosphating steel
panel, crossed out unidirectional expansion eclipse ≤ 2mm.
