Applications

HumiSeal® 1B15 – Acrylic Conformal Coating for PCB Protection

– Item Name: HumiSeal® 1B15
– Manufacturer: HumiSeal
– Technologies: Single-component acrylic conformal coating
– Color: Not specified
– Certifications: RoHS Directive 2002/95/EC
– Cure Type: 24 hrs at room temperature or 30 min at 76°C
– Package Size: Contact Avantek for details.
– Shelf Life: 18 months

1. Product Overview

HumiSeal® 1B15 is a single-component, fast-drying acrylic conformal coating designed for printed circuit assemblies. It is easily repairable and RoHS Directive 2002/95/EC compliant.

2. Applications

  • Protection of printed circuit boards (PCBs)
  • Applied via dipping, spraying, or brushing
  • Suitable for applications requiring moisture and electrical insulation

3. Typical Properties

Property Value Test Method
Density 0.91 ± 0.02 g/cm³ ASTM D1475
Solids Content 35 ± 3% Fed-Std-141, Meth. 4044
Viscosity 470 ± 20 centipoise Fed-Std-141, Meth. 4287
VOC Content 590 g/L
Drying Time to Handle 10 minutes Fed-Std-141, Meth. 4061
Recommended Coating Thickness 25 – 75 microns
Curing Time 24 hrs @ RT or 30 min @ 76°C
Time to Reach Optimum Properties 7 days
Thermal Shock Resistance -65°C to 125°C MIL-I-46058C
Coefficient of Thermal Expansion 77 ppm/°C
Glass Transition Temperature (Tg) 15°C DSC
Modulus 69.5 MPa DMA
Dielectric Withstand Voltage >1500 volts MIL-I-46058C
Dielectric Constant (1MHz, 25°C) 2.03 ASTM D150-98
Dissipation Factor (1MHz, 25°C) 0.01 ASTM D150-98
Insulation Resistance 3.5 × 10¹⁴ ohms (350TΩ) MIL-I-46058C
Moisture Insulation Resistance 4.0 × 10¹⁰ ohms (40GΩ) MIL-I-46058C
Fungus Resistance Passes ASTM G21

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