Passenger cars and commercial vehicles seat Black electrophoresis
paint
Product Introduction:
HL-1607LB/HLS-1701A 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 and stainless steel sheet etc.
This product features shown below:
The appearance of the coating is flat, delicate, smooth, uniform
high gloss.
Good stability of bath can adaptable for a longer updating cycle.
The bath has strong anti-shrinkage and anti-pollution ability.
Strong anti-corrosion properties, good salt spray resistance
workpiece edge.
Coating fullness of good, better substrate hiding .
The main component Matrix resin:
polyurethane modified epoxy resin
Curing agent: totally enclosed multi-isocyanates
Neutralizing agent: organic acid
Solvent: alcohol ether
Additives: surface active agent, prevent shrinkage cavity agent
Pigment: Titanium pigment, carbon black, kaolin, antirust pigment
Product quality data:
| Project | Technical data | Test standard |
Resin
(HL-1607 LB) | Black Paste (HLS-1701A) |
| Appearance | —— | Milky white liquid | Black viscous liquid,no agglomeration | Visual |
| pH | 25℃ | 6.0±1.0 | —— | GB/T 9724 |
| Conductivity | 25℃, μs/cm | 1400±600 | —— | HG/T 3334 |
| 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 Bath preparation
Ratio:
Resin 800.00-1200.00
Paste 200.00
DI water 2000.00
Total 3400.00
⑵ Ripening conditions
Sample quantity: 3000～3400g
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: 28-35℃
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:(175-185)℃×(20-30)min (Keeping temperature of
parts coated)
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:(4-6) | -- | |
| Ripening time | 24-48 | -- | |
| Solid ( 120 ℃ /1h ,% ) | 14±4 | -- | once a day |
| PH | 5.8-6.4 | 2.0-3.5 | once a day |
| Conductivity ( μs/cm ) | 1200±400 | 2000±1000 | once a day |
| P/B | 0.08-0.15 | once a week |
| L panel | Smooth horizontal plane and vertical plane without obvious
differences | once a week |
| Solvent content (%) | 0.5-1.8 | once a week |
| Liquid level Fall head (cm ) | 10-15 | once a day |
| ED voltage( V ) | 0-300 | once a day |
| Break voltage ( V ) | ≥320 | once a week |
| Bath temperature ( ℃ ) | 38-35 | 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( ℃ ) | 180-190 | once a day |
| Curing conditions | Drying temperature |
(175-185)℃×(20-30)min (With content holding time) | 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),≥ | 72 | GB/T 9274 |
| Alkali resistance | h,(50g/L NaOH),≥ | 72 | GB/T 9274 |
| *Salt spray resistance | h,(film thickness ≥ 20μm) ,≥ | 1000 | GB/T 1771 |
* Note: The substrate use the Bonder standard phosphating steel
panel, crossed out unidirectional expansion eclipse ≤ 2mm.
Construction equipment:
Cathodic electrophoretic coating construction in the
electrophoresis tank, so need to have the following equipment:
Electrophoresis tank
Circulation devices (including filter, fill the paint device)
DI water equipment
DC power supply and the power supply unit
Anode box (tube) and circulation device
Ultrafiltration device
Cleaning devices
Heat exchanging equipment
Curing device
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.
Specification statement:
This manual contains information and recommendations are based on
our current knowledge and experience, accurate to the date of
publication so far. It cannot be used as a guarantee or commitment,
in any case, responsibility for users to decide on the use of this
product is intended availability. We remain in the process or new
development within the scope of the right to change product
specifications. Because we cannot control the construction
conditions, hope through customers own experiments to determine
satisfaction with the final results.
If you want to learn more about HLS coating products, please
contact Sales Department of Shanghai HLS now
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