Solution for oil-radiator electrodeposition coating
Product Introduction
HS-6500LB/HS-6500 White epoxy acrylic cathodic electrophoretic
coating for auto is the 9th 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.
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.
This product features shown below:
High throwing power, good internal and external uniformity.
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Simple control of bath and wide operation range is suitable for the
operation specification and site equipment for different customers.
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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.
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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 | 1:3-4 | -- | |
| 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 ) | 1000±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( ℃ ) | 145-165 | once a day |
| Curing conditions | Drying temperature |
(140-160) ℃ ×(20-30)min (With content holding tim | once a day |
Filling tank proportion and method
⑴ Bath preparation
Ratio:
Resin 1020.00
Paste 300.00
DI water 3280.00
Total 3 4600.00
⑵ Ripening conditions
Sample quantity: 4600g
Container: 5L (Diameter 16cm)
Tank temperature:28-30 ℃
Time: 24～48Hr
Mixed conditions: impeller diameter 8cm (speed 200rpm)
(3) Coating conditions
Experimental panel: phosphated cold-rolled steel plate
Tank temperature: 30±2℃
Pole ratio: A/C = 1/2 ~ 1/4
Distance of electrodes: 15cm
ED time: For full immersing 1-3 minutes ( 20 seconds soft start)
Baking conditions:(140-160)℃×(20-30)min (Keeping temperature of
parts coated)
