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Certifications
HumiSeal UV500 conformal coating is:
- single component
- high solids
- UV curable
- an elastomeric acrylate
HumiSeal UV500 conformal coating has:
- No VOCs or solvent
- higher flexibility than existing UV systems
- secondary moisture cure mechanism for curing in the non-UV exposed shadowed areas
- fluoresces under UV light to allow for coating inspection
- recognized under UL File Number E105698
- EU RoHS Directive 2015/863 and China RoHS 2 compliant
Application of HumiSeal UV500
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. Please contact HumiSeal® for additional information.
Spraying
HumiSeal UV500 can be applied via standard selective coating equipment or by conventional hand spray equipment. The source air used for spraying must be dry (a dry inert gas (nitrogen or argon) is highly recommended) to prevent premature curing of the secondary cure mechanism. The spraying should be done with adequate ventilation so that the vapor and mist are carried away from the operator.
Brushing
HumiSeal UV500 may be applied by brush for rework or touch up only. Brush must be cleaned with solvent promptly after use.
Curing
HumiSeal UV500 is a highly cross-linked coating. In order to achieve maximum cross-linking density, the product must be exposed to the correct spectral output. Humiseal has modeled the performance of UV500 using Arc and Microwave based UV curing equipment. The table below outlines the required dosage and irradiance values necessary to render HumiSeal® UV500 tack free post UV exposure with both equipment types. Minimum figures should provide a tack-free surface. The maximum recommendation represents the highest tested values by Humiseal. The cure recommendations may change as curing technology develops.
| Density | 1.0 to 1.1 g/cm3 |
| Minimum Solids Content | 98 % |
| Viscosity, per Fed-Std-141, Meth. 4287 | 275 – 375 centipoise |
| Recommended Coating Thickness | 25 – 125 microns |
| Recommended UV Cure | See Curing Above |
| Shelf Life at Room Temperature, from DOM | 6 Months |
| Glass Transition Temperature – DSC | -43°C |
| Coefficient of Thermal Expansion – TMA | 137 ppm/°C Below Tg 311 ppm/°C Above Tg |
| Modulus – DMA | 0.4 MPa @ 25°C |
| Flammability, per UL94 | V-0 |
| Thermal Conductivity | 0.505 W/mK |
| Dielectric Withstand Voltage, per MIL-I-46058C | >1500 V |
| Surface Resistivity, per ASTM D-257 | 2.0 x 1011 ohms |
| Volume Resistivity, per ASTM D-257 | 8.0 x 1012 ohms.cm |
| Insulation Resistance, per MIL-I-46058C | 4.5 x 1011 ohms |
| Moisture Insulation Resistance, per MIL-I-46058C | 1.6 x1010 ohms |
| Surface Insulation Resistance, per IPC J-STD-004 (mod.) | 8.9 log10 ohms |
| Resistance to Chemicals | Good |
| Fungus Resistance, per IPC-TM-650 2.6.1.1 | Pass |
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Humiseal-UV500-SDS.pdf
Size: 200.25 kB
Type: pdf
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Humiseal-UV500-1.pdf
Size: 174.43 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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