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Humiseal 2A53 Polyurethane Conformal Coating
From £73.87
HumiSeal 2A53 is a two component epoxy conformal coating supplied as Parts A and B, suitable for general printed circuit boards and applications where exceptional resistance to solvents or other chemicals is required.
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HumiSeal 2A53 fluoresces under UV light for inspection purposes. HumiSeal 2A53 coating is MIL-I-46058C qualified and IPC-CC-830 and RoHS Directive 2002/95/EC compliant.
| Density, per ASTM D1475 | 0.93 ± 0.03 g/cm³ |
| Solids Content, % by weight per Fed-Std-141, Meth. 4044 | 54 ± 5 % |
| Viscosity, per Fed-Std-141, Meth. 4287 | 350 ± 150 centipoise |
| VOC | 455 grams/litre |
| Recommended Coating Thickness | 25 - 75 microns |
| Drying Time to Handle per Fed-Std-141, Meth. 4061 | 5 hours |
| Time Required to Reach Optimum Properties | 7 days |
| Optional Curing Conditions to Reach Optimum Properties | 2 hrs @ 93°C |
| Recommended Thinner | HumiSeal® Thinner 535 |
| Pot Life at Room Temperature | 24 hours |
| Shelf Life at Room Temperature, DOM | 12 months |
| Thermal Shock, 50 cycles per MIL-I-46058C | -65°C to 125°C |
| Coefficient of Thermal Expansion - TMA | 56 ppm/°C |
| Glass Transition Temperature - DSC | 19°C |
| Modulus - DMA | 32.2 MPa |
| Flammability, per MIL-I-46058C | Self-Extinguishing |
| Dielectric Withstand Voltage, per MIL-I-46058C | >1500 volts |
| Dielectric Breakdown Voltage, per ASTM D149 | 8000 volts |
| Dielectric Constant, at 1MHz and 25°C per ASTM D150-98 | 3.0 |
| Dissipation Factor, at 1MHz and 25°C per ASTM D150-98 | 0.03 |
| Insulation Resistance, per MIL-I-46058C | 2.0 x 1014 ohms (200TΩ) |
| Moisture Insulation Resistance, per MIL-I-46058C | 2.8 x 1010 ohms (16GΩ) |
| Fungus Resistance, per ASTM G21 | Passes |
| Resistance to Chemicals | Excellent |
2A53.pdf
Size: 92.08 kB
Type: pdf
2A53-Part-A-SDS.pdf
Size: 216.03 kB
Type: pdf
2A53-Part-B-SDS.pdf
Size: 231.52 kB
Type: pdf
Delivery info
Shipment method | Shipment cost |
Click and Collect | FREE |
Next day (orders above £75.00 ex.vat) | FREE |
Next day (orders below £75.00 ex.vat) | £6.99 |
Next day pre 12AM | £17.99 |
Next day pre 10AM | £20.99 |
Saturday AM | £45.00 |
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