841AR Aerosol
Technical Data Sheet
TM
Super Shield Nickel Conductive Coating
Description
841AR is a conductive coating that consists of a one-part, solvent-based acrylic lacquer, pigmented with a highly
conductive nickel flake. It is smooth, hard, and abrasion resistant. It has a quick dry time, with no heat cure
necessary. It adheres strongly to most injection-molded plastics, such as ABS, PBT and PVA. It also provides
strong corrosion resistance and is suitable for use in marine environments.
841AR provides a conductive coating for the interior of plastic electronic enclosures that suppresses
EMI/RFI emissions. It excels when corrosion resistance is a concern.
Features and Benefits
UL Recognized (File # E202609)
Provides effective EMI/RFI shielding over a broad frequency range
-3
Resistivity of 7.6 x 10 cm
Mild solvent system, and safe on polystyrenes
HAP freedoes not contain toluene, xylene, or MEK
Usage Parameters
Properties Value
Touch dry or recoat time 3 min
Full cure @22 C [72 F] 24 h
Full cure @65 C [149 F] 30 min
Shelf life 3 y
a) 2 2
Theoretical 340G spray can coverage 2 500 cm [390 in ]
a) Estimate based on a coat thickness of 50 m [2.0 mil] and 50% transfer efficiency
Temperature Ranges
Properties Value
Constant service temperature -40120 C [-40248 F]
Intermittent temperature limit -50125 C [-58257 F]
Storage temperature limits -540 C [23104 F]
ISO 9001:2015 Quality Management System. Burlington, Ontario, Canada SAI Global File: 004008 Date: 04 December 2018 / Ver. 3.00 Page 1841AR Aerosol
Cured Properties
Electric & Magnetic Properties Method Value
Resistivity Method 5011.5 in 0.0076 cm [130 S/cm]
MIL-STD-883H
a)
Surface resistance
1 coat @2.1 mil Square probe 0.62 /sq
2 coats @4.2 mil Square probe 0.38 /sq
3 coats @6.1 mil Square probe 0.34 /sq
Magnetic class Ferromagnetic
Relative permeability 100
Shielding attenuation, 51 m [2.0 mil]
>10100 kHz IEEE STD 299-1997 8489 dB
>100 kHz1 MHz IEEE STD 299-1997 6588 dB
>110 MHz IEEE STD 299-1997 3960 dB
>10100 MHz IEEE STD 299-1997 3252 dB
>100 MHz1 GHz IEEE STD 299-1997 5261 dB
>110 GHz IEEE STD 299-1997 5674 dB
>1018 GHz IEEE STD 299-1997 4968 dB
Physical Properties Method Value
Paint type Lacquer (thermoplastic)
Color Visual Dark grey
Abrasion resistant Yes
Blister resistant Yes
Peeling resistant Yes
Water resistant Yes
-
a) Surface resistance is given in /sq and the corresponding conductance in Siemens (S or ).
ISO 9001:2015 Quality Management System. Burlington, Ontario, Canada SAI Global File: 004008 Date: 04 December 2018 / Ver. 3.00 Page 2