- Organic Intermediate[29]
- Organic Acid[1]
- Lubricant[2]
- Other Electrical Equipment[2]
- Pigment[4]
- Industrial Power Supply[1]
- Other Organic Chemical[1]
- Sulphate[1]
- Chemical Reagents[3]
- Other Chemicals[7]
- Contact Person : Ms. Zhang Daphne
- Company Name : Qinhuangdao Bright Chemical Co., Ltd.
- Tel : 86-335-7636676
- Fax : 86-335-7636679
- Address : Hebei,Qinhuangdao,9-1-203, Tianyang New city, Qinhuangdao , Hebei , China
- Country/Region : China
- Zip : 066001
8031Cathodic Polyurethane(PU) Electrophoretic Lacquer
Properties:
High work stabilityHigh hardness, it can be up to 4H, low baking temperature (at 150°C)Good resistance to salt-spray testGood resistance to sweatStrong combination ability of bottom and surface.Good color fastnessHigh glossGood tolerance to solventSpecification:
Item | Index |
Appearance | Yellowish viscous liquid |
Solid content | 60±2% |
Solvent volume | 8±1% |
Viscosity ( @25°C) | 9400cs |
Suggested storage temp. | 15~28°C |
Suggested storage time | 6 months |
Performance of coating film:
Item | Test method | Value |
Color | Full range | |
Harness | 5-15u | |
Pencil harness | ASTM D3363 | 3-4H |
Adhesion strength | ASTM D3359 | 100/100 |
Anti-impact test | ASTM D2794 | 1/2w×1kg×50cm |
Salt-spray test | ASTM B117 | 168hrs(pls see note 1) |
Anti-boiling water test | 24hrs | |
Anti –MIBK scratch | ASTM D-4752 | 270times |
Anti-acetone scratch | ASTM D-4752 | 40times |
Alcohol immersion | 15’s(pls see note 2) |
Note 1:workpiece is zinc phosphate (Zn3(PO4)2) standard plate, coating film make a cross scratch, film thickness10-12um.
Note 2:coating film after immersing can be picked up by hand nail.
Operation condition:
Index | Value |
Solid content | 7-10% |
Work bath temp. | 26-30°C |
Operation voltage | 25-150V |
Operation time | 15-45’s |
Backing condition | 20-30min. ( at 150°C) |
Valid coating film | 15um |
Pole plate area ratio ( pls see note) | 2.1-1.1 |
Note: Pole plate area ratio------- cathode area: anode are, (workpiece as cathode), anode area influence uniformity of coating film largely. When making color lacquer electrophoresis, if anode area is too large, it will result in color difference. If it is equipped with anode container, valid area is about 80% of naked area
Bath make-up :
( take electrophoresis tank 1MT as sample)
Weight (kg) | |
8031 | 140 |
Pure water | 860 |
Total | 1000 |
Test result
Solid content | 10.1%(3hrs @105°C) |
PH | 4.3 |
Conductance | 495us/cm |
Solvent volume | 3.74% |
Tank temp. | 27°C |
conductance Pure water | 10us/cm |
Conductance for water-rinsing tank | 50us/cm |
Note: coating film and transparency will change with solid content, conductance, solvent and temperature.
Work Bath control: ( tank lacquer)
PH | 4.1-4.6 |
Solid content | 7-10% |
Conductance | 45-55us/cm· (solids) |
8031Cathodic Polyurethane(PU) Electrophoretic Lacquer
