MA3101 Acrylic Conformal Coating

MA3101, a modified acrylic synthetic resin-based coating, is designed for printed circuit board conformal coating. This material solidifies into a protective film either at ambient temperatures or when heated, safeguarding the components with a durable layer. It boasts superior environmental defense capabilities. Once set, it creates a clear, flexible film that excels in insulation and is resistant to weathering and chemical attacks. This ensures the operational integrity of electronic devices by mitigating performance degradation and shielding circuitry and associated apparatus from environmental harm. Its operational temperature spans from -45 to 125 degrees Celsius. The coating features comprehensive protection against water, moisture, dust, thermal shock, aging, radiation, salt spray, ozone corrosion, vibrations while maintaining excellent flexibility and adherence.

Features and benefits

  • One-component transparent, rapid curing at room temperature or heating.
  • Low viscosity, high content, easy sizing process.
  • Cures to form a tough and wear-resistant surface coating.
  • Low odor and good moisture-proof and shock-proof performance.
  • Cured into a transparent film with excellent flexibility and moisture resistance.
  • Working temperature -45°C ~ 125°C.
  • Low odor and meets VOC emission standards.
  • Comply with EU ROHS and REACH standards, as well as California environmental protection requirements.


Properties MA3101
Appearance Transparent (contains fluorescence)
Viscosity, @25°C (cps) 100±20
Solid content (%) 28±2
Working temperature range, °C –45 ~ 125
Hardness (shore A) 50±5
Surface drying time (min) <15 (25°C, 50% RH)
Volume resistivity (Ω·cm) 1.0x 1015
Dielectric strength (kv/mm) ≥ 65
Dielectric constant @50Hz ≥3.0
Antibacterial properties Passed
Anti-salt spray Passed
Adhesion Passed

Technical Documents

MA3101 Technical Data Sheet

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