HumiSeal® 1B31 LTX is a fast drying, single component acrylic conformal coating, specifically designed to protect against the effects of moisture, corrosive environments and dirt. It is specially formulated with reduced xylene and toluene concentration to be fully compliant with GB30981-2020*. Humiseal 1B31 LTX is available in a range of preblends, which are formulated for use with no further dilution.
HumiSeal 1B31 LTX conformal coating has:
Protection against moisture, salt / corrosive environments, and dirt
Easy application with automated systems
Easy to cure and dry
Low moisture vapor permeability.
Fluoresces under UV for ease of inspection and is easily repaired.
Easy removal using Humiseal® Strippers.
Range of preblends thinners available for different application methods
Compliant with GB30981-2020
Product Specification
Recommended Coating Thickness
25 – 75 microns
Drying Time to Handle per Fed-Std-141, Meth. 4061
10 minutes
Recommended Curing Conditions
24 hrs @ RT or 30 min @ 76°C
Time Required to Reach Optimum Properties
7 days
Recommended Stripper
HumiSeal® Stripper 1080
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
