UV curable UV 40 Solar

Model No:	UV-40

HumiSeal® UV40-SOLAR is a single component, low viscosity, high solids conformal coating material that has been formulated for use under prolonged exposure to sunlight, without discoloration or degradation. It meets the requirements of SAE-J-1960 standard (QUV accelerated age testing). In addition, the coating possesses excellent chemical resistance, surface hardness, flexibility, moisture resistance and is tack-free after exposure to UV light. A secondary moisture cure mechanism will cure unexposed areas within 2-3 days at ambient conditions.

Product Enquiry

HumiSeal® UV40 SOLAR conformal coating is:

single component
high solids
UV curable
acrylated polyurethane
no-yellowing with exposure to UV
meets requirements of SAA-J1960

HumiSeal® UV40 SOLAR conformal coating has:

excellent chemical resistance, surface hardness, flexibility and moisture resistance.
secondary moisture cure mechanism for curing in the non-UV exposed shadowed areas
fluoresces under UV light to allow for coating inspection
can be applied by selective coating equipment.
recognized under UL File Number E105698
MIL-I-46058C qualified
IPC-CC-830 and RoHS Directive 2015/65/EU compliant

Application of HumiSeal® UV40 SOLAR Conformal Coating

Conformal coatings can be successfully applied to substrates that have been cleaned prior to coating and also to substrates assembled with low residue, “no clean” assembly materials. Users should perform adequate testing to confirm compatibility between the conformal coating and their particular assembly materials, process conditions and cleanliness level.

Specification:

Product Specification
Density	1.06 g/cm³
Minimum Solids Content	95 %
Viscosity, per Fed-Std-141, Meth. 4287	650 ± 150 centipoise
Recommended Coating Thickness	25-125 microns
Recommended UV Cure*	See TDS for Details
Shelf Life at Room Temperature, DOM	12 months
Thermal Shock, 50 cycles per MIL-I-46058C	-65ºC to 125ºC
Glass Transition Temperature – DSC	45ºC
Coefficient of Thermal Expansion – TMA	85 ppm/ºC Below T_g 197 ppm/ºC Above T_g
Modulus – DMA	10364 MPa @ -40°C 4283 MPa @ 25°C 66 MPa @ 80°C
Dielectric Withstand Voltage, per MIL-I-46058C	>1500 votls
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	4.7 x 10¹⁰ ohms (47GΩ)
Fungus Resistance, per ASTM G21	Pass
*Fusion “H” style bulb recommended