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JT-8310C Black Cathodic Electrocoat
Place of Origin | China |
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Brand Name | Jingtu |
Certification | MSDS SGS |
Model Number | JT-8310C Black |
Document | GZIN2503001557PC02_EN.pdf |
Minimum Order Quantity | 500KG |
Supply Ability | 10000 ton/month |

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xHighlight | Black Cathodic Electrocoating,JT-8310C Cathodic Electrocoating |
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Composition
This product is composed of two components: emulsion and pigment paste. The main resin consists of epoxy resin, isocyanate crosslinking agent, and toughening agent, which is neutralized with acid to form an emulsion. The epoxy resin also serves as the dispersion resin, combined with pigments and fillers to produce the pigment paste through grinding.
Features
- Application Performance: Good throwing power and excellent electrodeposition performance; the bath liquid has outstanding anti-settling properties.
- Film Performance: Excellent coating appearance and mechanical properties.
- Environmentally Friendly: A lead-free, heavy-metal-free, water-based coating that complies with environmental standards.
Applications
- Widely used for corrosion-resistant coating of automobiles, automotive parts, home appliances, hardware, agricultural machinery, and various steel components.
Technical Specifications
Raw Paint Specifications
Item | Technical Specifications | Inspection Standard | ||
Emulsion | Color Paste | |||
State of Material in Container | Milky white or light yellow liquid | Black viscous liquid, slight layering allowed, no agglomeration | Visual inspection | |
Solids Content | 120°C / 1h / 2g, % | 32-34 | 40-42 | GB/T1725-2007 |
Fineness | μm | ≤10 | ≤20 | GB/T6753.1 |
pH Value | 25°C | 6.0-6.6 | —— | GB/T9724 |
Conductivity | 25°C, μs/cm | 1400-2200 | —— | HG/T3335 |
Bath Parameters
Item | Technical Specification | Testing Standard | |
Solids Content | 120°C / 1h / 2g, % | 16-18 | GB/T1725-2007 |
pH Value | 25°C | 5.6-6.3 | GB/T9724 |
Conductivity | 25°C, μs/cm | 1000-2200 | HG/T3335 |
Throwing Power | cm, NV = 20% | ≥20 | HG/T3334-2012 |
Application Temperature | °C | 28-32 | Thermometer |
Electrophoresis Time | s | Full Immersion 60–180 | N/A |
Application Voltage | V | 100-240 | 2L Bath Solution |
Drying Time / Temperature | °C / min | 175/25 | GB/T1728 |
Solvent Content | % | 1.0-2.0 | QB8008 |
Breakdown Voltage | V | ≥300 | HG/T3952 |
Ash Content | —— | 8-14 | GB/T1747-1979 |
Coulombic Efficiency | mg/C | ≥25 | HG/T3952 |
Film Performance Indicators
Item | Specification | Testing Standard | |
Appearance | —— | Smooth, flat, no pinholes | Visual Inspection |
Film Thickness | μm | 15-35 | GB/T13452.2 |
Hardness | —— | ≥2H | GB/T6739 |
Erichsen Cupping | mm | ≥10 | GB/T9753 |
Adhesion | Grade | 0 | GB/T9286 |
Flexibility | mm | 1 | GB/T1731 |
Impact Resistance | cm | 50 | GB/T1732 |
Gloss | 60° | 50-90 | GB/T9754 |
Acid Resistance | 0.05mol/L H₂SO₄,48h | No peeling, blistering, or wrinkling; slight discoloration allowed | GB/T 9274 Method A |
Alkali Resistance | 0.1mol/L NaOH,48h | No peeling, blistering, or wrinkling; slight discoloration allowed | GB/T 9274 Method A |
Salt Spray Resistance | h | ≥800 | GB/T1771-2007 |
*Salt Spray Resistance: Using Bonderite standard phosphated steel panel, unidirectional corrosion ≤ 2 mm*
Bath Preparation
Color paste : Emulsion : Deionized water = 1:4:5 (weight). Add appropriate additives and neutralizing agents to adjust the parameters. Let the mixture age for 48 hours, then filter and apply.
Application Process
Pre-degreasing → Degreasing → Water Rinse → Surface Conditioning → Phosphating → Water Rinse → Pure Water Rinse → Electrophoresis → Post-rinse → Drying (Also suitable for silane or ceramic pretreatment processes)
Packaging and Storage
- Packaging
Emulsion: 50 kg/barrel, 200 kg/barrel, 1000-liter plastic IBC barrel (1000 kg/barrel)
Color paste: 50 kg/barrel, 65 kg/barrel - Storage Conditions
Store sealed in a cool, dry place at 5–35°C - Shelf Life
Emulsion: 6 months
Color paste: 6 months (If past the shelf life, the product can still be used if it passes quality inspection based on relevant standards.)
Safety and Hygiene Regulations
- This product is not listed in the "GB6944 Classification and Code of Dangerous Goods."
- Ensure proper ventilation during application.
- Avoid contact with eyes or ingestion.