Electrophoretic coating for hardware tool industry
Product Introduction
HL-1607LB/HL-1500G 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 coatingthat isenvironment-friendly
withhigh propertyandlow cost. Such coatingdoesnot 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, andcan adapt galvanized steel sheet
perfectly,almost canbe applied to foundation coating of all metal,
This product features shown below:
| The appearance of the coating is flat, delicate, smooth, uniform
high gloss. |
| Stronganti-corrosionproperties,goodsaltsprayresistanceworkpieceedge. |
| Coatingfullness ofgood,bettersubstratehiding |
| Excellent leveling coating,good bonding for ceand compatibility
with plastic powder. |
.
The main component Matrix resin:
Neutralizing agent: organic acid
Solvent: alcohol ether
Pigment: carbon black, kaolin, antirust pigment
Curing agent: Fully enclosed multi isocyanate
Product quality data:
| Project | Technical data | Test standard |
Resin
(HL-1607LB) | Black Paste (HL-1500G) |
| Appearance | —— | Milky white liquid | Black viscous liquid,no agglomeration | Visual |
| pH | 25℃ | 6.0±1.0 | —— | GB/T 9724 |
| Conductivity | 25℃, μs/cm | 1400±400 | —— | HG/T 3334 |
| Storage stability |
No stratified state, and there were no obvious difference compared
to before storage | In 5-35 ℃ temperature 1 year |
Note: pH, conductivity measurement in the resin/pure water = 1:1
dilution
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 ,% ) | 14±4 | -- | once a day |
| PH | 5.7-6.2 | 2.0-3.5 | once a day |
| Conductivity ( μs/cm ) | 1200±400 | 1500±700 | 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 ( ℃ ) | 28-35 | 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 |
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 devic
