
Solution for the Car shock 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:
Particularly suitable for high temperature baking of the workpiece, in particular, rubber and metal binding parts and zinc aluminum alloy material.
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
Solvent: alcohol ether
Product quality data
Project | Technical data | Test standard | ||
Resin (OHT-825) | Black Paste (OHT-825) | |||
pH | 25℃ | 6.0±1.0 | —— | GB/T 9724 |
Appearance | —— | Milky white liquid | Black viscous liquid,no agglomeration | Visual |
Conductivity | 25℃, μs/cm | 1400±500 | —— | 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
Filling tank proportion and method
⑴ 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 |
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,(50g/L H2SO4),≥ | 48 | GB/T 9274 |
Alkali resistance | h,(50g/L NaOH),≥ | 48 | GB/T 9274 |
*Salt spray resistance | h,(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.
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
Customers in the electric vehicle industry
![]() | ![]() | ![]() |
HLS Coatings (Shanghai)Co.Ltd
Since its foundation in November 2003, HAOLISEN has been adhering
to the vision of “Advocator and Innovator of Waterborne Coating
Solutions” and committed to the development and production of
industrial electrophoretic coatings by investing lots of human,
material, energy and financial resources over more than a decade.
CORPORATE CULTURE
Corporate mission: Technological innovation, customer satisfaction, and serving the country through industry.
| ![]() |
Scientific Research Innovation
Haolisen Group has been successfully transformed from a production and processing enterprise at the beginning of its establishment into a scientific and technological innovative enterprise. The group has invested a lot of funds to set up a scientific research team and build a scientific research center covering an area of 10,000 m², containing scientific research instruments worth more than 100 million yuan; The Group has more than 100 research and development researchers, accounting for 38% of the total number of employees, of which the core research team members are graduated from Fudan University, Southeast University, East China University of Science and Technology, East China Normal University and other famous universities in China.
Scientific Research Achievement
While consolidating its own strength, Haolisen continues to promote the exploration and innovation of cutting-edge technologies, accelerate the transformation and application of scientific research results, and contribute to the technological progress and industrial upgrading of local enterprises. We have absolute core competitiveness in product research and development, has reached the international leading level, with more than 100 kinds of independent research and development products, many independent research and development products have obtained 30 national high-tech transformation projects, 90 invention patents, 120 practical patents.