HumiSeal?
1R32 Acrylic Conformal Coating
Technical
Data Sheet
HumiSeal?
1R32 is a fast drying, single component acrylic conformal coating that provides
excellent moisture and environmental protection for printed circuit assemblies.
HumiSeal? 1R32 fluoresces under UV light for ease of inspection and is easily
repaired. HumiSeal? 1R32 is in full compliance with the RoHS Directive
2002/95/EC.
Properties
of HumiSeal? 1R32
Density,
per ASTM D1475 0.91
± 0.02 g/cm³
Solids
Content, % by weight per Fed-Std-141, Meth. 4044 35 ± 2 %
Viscosity,
per Fed-Std-141, Meth. 4287 220 ± 30
centipoise
VOC
600
grams/litre
Drying
Time to Handle per Fed-Std-141, Meth. 4061 10
minutes
Recommended
Coating Thickness 25
- 75 microns
Recommended
Curing Conditions 24
hrs @ RT or 30 min @ 76°C
Time
Required to Reach Optimum Properties 7
days Recommended
Thinner
(dipping & brushing) HumiSeal?
Thinner 505
Recommended
Thinner (spraying) HumiSeal?
Thinner 521
Recommended
Stripper HumiSeal?
Stripper 1080
Shelf
Life at Room Temperature, DOM 24
months
Thermal
Shock, 50 cycles per MIL-I-46058C -65°C
to 125°C
Coefficient
of Thermal Expansion - TMA 170
ppm/°C below Tg 340 ppm/°C
above Tg
Glass
Transition Temperature - DSC 14°C
Modulus
- DMA 2000
MPa @ -40°C
1050
MPa @ 20°C
8.5
MPa @ 60°C
Dielectric
Withstand Voltage, per MIL-I-46058C >1500
volts
Dielectric
Breakdown Voltage, per ASTM D149 7500
volts
Dielectric
Constant, at 1MHz and 25°C per ASTM D150-98 2.5
Dissipation
Factor, at 1MHz and 25°C, per ASTM D150-98 0.01
Insulation Resistance, per
MIL-I-46058C 8.0
x 1014 ohms (800TΩ)
Moisture Insulation
Resistance, per MIL-I-46058C 6.0
x 1010 ohms (60GΩ) Fungus Resistance, per ASTM
G21 Passes
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