AFA Aromatic Free Acrylic Conformal Coating

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AFA is an optically clear conformal coating ideally suited for use as an LED coating or in other commercial applications. AFA boasts superb properties, maintaining excellent clarity, with minimal colour temperature shift after prolonged UV exposure making it a superb choice for an LED coating application. While it also provides excellent protection in humid environments, and flexibility over a wide operating temperature range.

AFA also contains a UV trace, which allows inspection of the PCB after coating to ensure complete and even coverage and may be removed for rework using solvents such as Electrolube’s ULS.

AFA is also available in pre-mixed versions for atomised spray applicators (AFA-S) and in line selective coating machines and non-atomised film coating applicators (AFA-F).

For full product details including test results please refer to the TDS below. If you still require further information please don’t hesitate to get in touch.

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Approvals RoHS Compliant (2015/863/EU): Yes
IPC-CC-830: Meets Requirements
UL746-QMJU2: Approved File Number: E138403
Liquid Properties Appearance: Pale Coloured Liquid
Density @ 25°C (g/ml): 0.91 (Bulk), 0.78 (Aerosol)
VOC Content: 67 ± 3% (Bulk), 85% (Aerosol)
Flash Point: Approx. -7°C (Bulk)
Solids content: 33 ± 3% (Bulk), 15% (Aerosol)
Viscosity (mPa s @ 25°C): 175 ± 25
Touch Dry: 5 – 10 minutes
Recommended Curing Time: 24 Hours @ 20°C
30 minutes @ 70°C
Coverage @ 25µm: 14m2
per litre, 2.4m
2
(200ml Aerosol)
Dry Film Coating Colour: Colourless
Operating Temperature Range: -65°C to +125°C
Flammability: UL94 V-0 Approved
Thermal Cycling (MIL-1-46058C): Meets requirements
Coefficient of Expansion: 130ppm
Dielectric Strength: 45kV/mm
Dielectric Constant: 2.5
Surface Insulation Resistance: 1 x 1015 Ω
Comparative Tracking Index: >300 Volts
Dissipation Factor @ 1MHz, 25°C: 0.01
Moisture Resistance (MIL-1-46058C): Meets requirements
BONO Test (Corrosion Factor): Pass (2.3%)

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