HumiSeal UV50
4 5 (1 evaluate)Category: UV Curabel
Manufacturer: Humiseal
Packaging: 5L, 20L
Origin: UK or USA
Product Specification
|
Density |
1.05 ± 0.05 g/cm3 |
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Minimum Solids Content |
95 % |
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Viscosity, per Fed-Std-141, Meth. 4287 |
375 ± 75 centipoise |
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Recommended Coating Thickness |
25 – 125 microns |
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Recommended UV Cure* |
SeeTDS for Details |
|
Shelf Life at Room Temperature, DOM |
12 months |
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Recommended Stripper** |
HumiSeal® Stripper 1100 |
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Thermal Shock, 50 cycles per MIL-I-46058C |
-65°C to 125°C |
|
Glass Transition Temperature – DSC |
-1°C |
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Coefficient of Thermal Expansion – TMA |
122 ppm/°C Below Tg |
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Modulus – DMA |
6.394MPa @ 25ºC |
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Flammability, per UL-94 |
|
|
Dielectric Withstand Voltage, per MIL-I-46058C |
>1500 volts |
|
Dielectric Constant, at 1MHz and 25°C per ASTM D150-98 |
2.5 |
|
Dielectric Constant, at 10MHz and 22°C per ASTM D2520 |
3.21 |
|
Dissipation Factor, at 1MHz and 25°C per ASTM D150-98 |
0.01 |
|
Insulation Resistance, per MIL-I-46058C |
8.9 x 1010 ohms (800TΩ) |
|
Moisture Insulation Resistance, per MIL-I-46058C |
3 x 109 ohms (47GΩ) |
|
Fungus Resistance, per ASTM G21 |
Pass |
|
Resistance to Chemicals |
Excellent |
HumiSeal UV50 offers the following features:
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single component, high solids
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highly flexible
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UV curable
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acrylate polyurethane
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excellent chemical resistance, surface hardness, flexibility, and moisture resistance.
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secondary moisture cure mechanism for curing in the non-UV exposed shadowed areas
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fluoresces under UV light to allow for coating inspection
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can be applied by selective coating equipment.
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IPC-CC-830 and RoHS Directive 2011/65/EU compliant
Application of HumiSeal UV50
When applying conformal coatings, it is essential that substrates are cleaned before coating, and can also be effectively coated when assembled with low-residue, “no clean” materials. To ensure compatibility, users should perform adequate testing to confirm that the conformal coating is compatible with their assembly materials, process conditions, and cleanliness levels. For further details, please contact HumiSeal®.
Spraying
HumiSeal® UV50 can be applied using standard selective coating equipment or conventional hand spray equipment. It is crucial to use dry source air (a dry inert gas is highly recommended) to prevent premature curing of the secondary cure mechanism. Additionally, spraying should be done in well-ventilated areas to ensure that vapors and mist are effectively removed from the operator's vicinity.
Brushing
For rework or touch-up purposes, HumiSeal® UV50 can be applied by brush. After use, it is important to clean the brush promptly with a solvent.
Clean-Up
To clean equipment and remove uncured HumiSeal® UV50, non-alcohol based solvents such as HumiSeal® Thinner 521 or Thinner 521EU are recommended.
Rework
As HumiSeal® UV50 is a highly cross-linked UV-cured coating, its cured film offers strong environmental and chemical resistance, making it more challenging to remove than traditional coatings. For rework, thermal displacement, mechanical abrasion, or HumiSeal® Stripper 1100 (where available) are effective methods.
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