Air conditioning compressor and refrigerator compressor black
electrophoresis paint
Product Introduction :
OHT-825/OHT-825 Ultra Low temperature Black Cationic Epoxy
Electrocoat, is HLS Paint (Shanghai) Co., Ltd. the ninth generation
of independent research and development of electrophoretic coating.
The lead, cadmium, chromium, mercury and other heavy metals,
two-component aqueous dispersion resin. At the same time, inherited
the characteristics of several generations of product quality,
OHT-825 on galvanized steel sheet has good adaptability, almost at
the bottom of all the metal material coating, such as: cold rolled
steel, galvanized steel, aluminum, stainless steel plate, rubber
parts, zinc and aluminum alloy plate, such as applicable.
This product features shown below:
Ultra low temperature curing completely green does not contain
heavy metals, in conformity with the European ROHS, the instruction
of PAHs, reach, fohs, can save about 60% of the energy consumption,
is the national government absolute attention and support
energy-saving emission reduction requirements of the project, the
state and the enterprises and the people.
Main ingredients:
| Additives: surface active agent, prevent shrinkage cavity agent | Pigment: carbon black, kaolin, antirust pigment |
| Neutralizing agent: organic acid | Matrix resin: Acrylic modified epoxy resin |
Product quality data
| Project | Technical data | Test standard |
Resin
(OHT-825) | Black Paste (OHT-825) |
| pH | 25℃ | 6.0±1.0 | —— | GB/T 9724 |
| Conductivity | 25℃, μs/cm | 1400±500 | —— | HG/T 3334 |
| Appearance | —— | Milky white liquid | Black viscous liquid,no agglomeration | Visual |
| 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
Filling tank proportion and method
⑴ Ripening conditions
Sample quantity: 2250～2500g
Container: 4L (Diameter 16cm)
Tank temperature: 28~32℃
Time: 24～48Hr
Mixed conditions: impeller diameter 8cm (speed 200rpm)
(2) 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: (130-140)℃×(20-30)min (Keeping temperature of parts coated)
Product film performance
| Project | | Indicator | Test standard |
| Appearance | Normal / Abnormal | Normal | Ocular estimate |
| Hardness | ≥ | 2H | GB/T 6739 |
| Cup drawing | mm,≥ | 7 | GB/T 9753 |
| Adhesion | Level | 0 | GB/T 9286 |
| Primer and topcoat adhesion | Level | 0 | GB/T 9286 |
| Flexibility | mm | 1 | GB/T 1731 |
| Impact | Kg.cm | 50 | GB/T 1732 |
| Gloss | 60° | 60-80 | GB/T 9754 |
| Water resistance | h,(23±2)℃ ≥ | 240 | GB/T 1733 |
| Acid resistance | h(0.05N H2SO4) ≥ | 48 | GB/T 9274 |
| Alkali resistance | h(0.1N NaOH) ≥ | 48 | GB/T 9274 |
| *Salt spray resistance | film thickness ≥ 20μm | 800 | JIS K 5600-7-1 |
* Note: The substrate use the Bonder standard phosphating steel
panel, crossed out unidirectional expansion eclipse ≤ 2mm.
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
Customers in the compressor
