Composition
Composed of two components: emulsion and color paste. The main resin system consists of epoxy resin and our independently developed high-throwing power resin, neutralized with acid to form the emulsion. The dispersion resin is based on epoxy resin, and the color paste is prepared by grinding pigments and fillers.
Features
Applications
Technical Specifications
Raw Paint Specifications
Item | Technical Specifications | Inspection Standard | ||
Emulsion | Color Paste | |||
State of Material in Container | Milky white or light yellow liquid | Gray viscous liquid, slight layering allowed, no agglomeration | Visual inspection | |
Solids Content | 120°C / 1h / 2g, % | 32-34 | 54-56 | GB/T1725-2007 |
Fineness | μm | ≤10 | ≤20 | GB/T6753.1 |
pH Value | 25°C | 6.0-6.5 | —— | GB/T9724 |
Conductivity | 25°C, μs/cm | 1200-1800 | —— | HG/T3335 |
Bath Parameters
Item | Technical Specification | Testing Standard | |
Solids Content | 120°C / 1h / 2g, % | 14-18 | GB/T1725-2007 |
pH Value | 25°C | 5.6-6.1 | GB/T9724 |
Conductivity | 25°C, μs/cm | 1000-2200 | HG/T3335 |
Throwing Power | cm, NV = 20% | ≥0.5 | Four-Panel Box Method |
Application Temperature | °C | 28-32 | Thermometer |
Electrophoresis Time | s | Full Immersion 60–180 | N/A |
Application Voltage | V | 100-260 | 2L Bath Solution |
Drying Time / Temperature | °C / min | 175/25 | GB/T1728 |
Solvent Content | % | 1.0-2.0 | QB8008 |
Breakdown Voltage | V | ≥280 | HG/T3952 |
Ash Content | —— | 18-24 | 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 | 15-25 | GB/T13452.2 |
Hardness | —— | ≥2H | GB/T6739 |
Erichsen Cupping | mm | ≥8 | 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 | ≥600 | 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 (by 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
Safety and Hygiene Regulations