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1322 solvent-based polyurethane Conformal coating material Benzene free Low odor

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1322 solvent-based polyurethane Conformal coating material Benzene free Low odor

1322 Solvent-Based Polyurethane Conformal Coating Material
1322 Conformal Coating is a single-component, solvent-based polyurethane coating material designed to provide reliable insulation and protection for assembled printed circuit boards (PCBs). This environmentally friendly coating is formulated without aromatic solvents (such as benzene, xylene, and C9 aromatic compounds) and contains no free isocyanates or isocyanate radicals, making it a safer choice for operators and the environment.
Ideal for flexible circuit boards and demanding electronic applications, 1322 offers excellent aging resistance, moisture protection, and anti-condensation properties that effectively prevent electrochemical corrosion and electronic migration.
Technical Specifications
FeatureSpecification
Base MaterialModified polyurethane resin (UR)
Color / AppearanceWine red, transparent
Solid Content (1h/125°C)40±2%
Viscosity (20°C, DIN4 cup)43±2 seconds
Density (20°C)1.00±0.02 g/cm³
Temperature Range-40°C to +140°C
Shelf Life6 months (sealed, 25-28°C)
Performance Advantages
Superior Electrical Insulation & Protection
Provides exceptional dielectric strength and insulation resistance, ensuring long-term reliability for sensitive electronics.
Outstanding Environmental & Moisture Resistance
  • 85/85 Test: Passed (85°C, 85% RH, 3 days)
  • Humidity Insulation Resistance: Passed (65°C, 90% RH)
  • Thermal Shock: Passed (-65°C to +125°C)
  • Anti-Condensation Resistance: Passed (40°C, 100% RH)
  • Flexibility: Passed IPC-CC-830B requirements - ideal for flexible and rigid PCBs
High Reliability in Harsh Conditions
  • Excellent aging resistance
  • Superior anti-corrosion properties (electrochemical and electronic migration)
  • Prevents moisture condensation and related electrical failures
  • Suitable for automotive, aerospace, industrial, and consumer electronics applications
Applications
1322 conformal coating is ideal for protecting PCBs in:
  • Automotive Electronics - ECU, sensors, control modules
  • Aerospace & Defense - High-reliability circuit boards
  • Industrial Control - PLC, power supplies, motor drives
  • Consumer Electronics - Smart devices, home appliances
  • LED Lighting - Driver and control board protection
  • Medical Electronics - Diagnostic equipment, monitors
Application Guidelines
Coating Methods: 1322 can be applied using dip coating, brush coating, spray coating (manual or automated), and selective coating equipment.
Coating Thickness: Approximately 50 µm wet film (equivalent to 25-30 µm dry film)
Industry Keywords
Conformal Coating PCB Protection Polyurethane Coating Solvent-Based Coating Automotive Electronics Aerospace Coating Industrial Control Circuit Board Insulation Electronic Coating Moisture Protection Anti-Corrosion Coating Selective Coating High Reliability Coating IPC-CC-830 Lead-Free RoHS Compliant Coating Material Electronics Manufacturing SMT Coating Flexible Circuit Protection
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