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Conformal Coating

Acrylic
Urhethan
Silicone
Synthetic Rubber
Conductive coating
1R32A-2

1R32A-2 Acrylic Conformal Coating

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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