Black electrophoretic paint for the Evaporator and the condense
Product Introduction
HL-1605LB/HL-1530G 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 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, andcan adapt galvanized steel sheet
perfectly,almost canbe applied to foundation coating of all metal,
suchas: cold and hot rolled steel sheet, galvanized steel sheet,
aluminum products, zinc-aluminum alloy sheet and stainless steel
sheetetc
This product features shown below:
The appearance of the coating is flat, delicate, smooth, uniform
high gloss.
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
(HLS-1701ELB) | Black Paste (HLS-1701EG) |
| 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:(4-6) | -- | |
| Ripening time | 24-48 | -- | |
| Solid ( 120 ℃ /1h ,% ) | 14±4 | -- | once a day |
| PH | 5.7-6.0 | 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 device |
Customer production site
