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MG Chemicals ER series are epoxy conductive paints that are designed for protection against EMI/RFI. They offer superior durability and resistance to solvents compared to other chemistries. These 2-part systems are suitable either in harsh environments with direct chemical exposure or for use on substrates like metal and concrete.

  • 2-part systems
  • Superior adhesion to metals and concrete
  • Excellent abrasion resistance
  • Enhanced resistance against solvents
  • Withstands wave solder temperatures exceeding 260°C
  • Military and commercial electronic enclosures
  • Avionic systems
  • Shielding paint for flooring
  • Conductive coating for electroplating metals
  • Shielding in harsh environments like engine hoods

– Nickel conductive paint for electroplating metals

– Silver conductive paint for premium shielding performance

– Silver-coated copper conductive paint which balances cost and EMI performance

841ER 842ER 843ER
Conductive filler Nickel Silver Silver-coated copper
Format Liquid Liquid Liquid
Color Grey Metallic silver Light metallic brown
Mix ratio by weight 100:25 100:10 100:28
Mix ratio by volume 100:38 100:20 100:36
Percent solids 32% 54% 30%
Density @ 25 °C [77 °F] 1.81 g/mL 1.37 g/mL 1.00 g/mL
Viscosity @ 25 °C [77 °F] 200 cP (Part A)

18 cP (Part B)

 60 cP (Part A)

18 cP (Part B)

 35 cP (Part A)

9 cP (Part B)
Calculated VOC 1 294 g/L 1 181 g/L 779 g/L
Theoretical coverage @ 2 mil (based on 100% transfer efficiency) 28 000 cm2/L 25 230 cm2/L 47 840 cm2/L
Working time 4 h 4 h 8 h
Recoat time (Plastic) 5 min 5 min 3 min
Cure time @ 22 °C [71.6 °F] Heat cure only 24 h Heat cure only
Cure time @ 65 °C [149 °F] 4 h 3 h 4 h
Cure time @ 80 °C [176 °F] 2 h 2 h 2 h
Cure time @ 100 °C [212 °F] 1 h 1 h N/A
Resistivity 0.03 Ω·cm 0.0002 Ω·cm 0.0018 Ω·cm
Surface resistance @ 50 μm 4.3 Ω/sq 0.13 Ω/sq 0.31 Ω/sq
Salt fog resistance @ 35 °C [95 °F], 96 h Good Excellent Poor
Constant service temperature -40–150 °C
[-40–302 °F]		 -40–150 °C
[-40–302 °F]		 -40–120 °C
[-40–248 °F]
Adhesion (ABS/PC) 5B 5B 5B
Pencil hardness 4H, hard 4H, hard 6H, hard
Magnetic class Ferromagnetic Diamagnetic Diamagnetic
Net contents 250 mL (2 metal can kit)

1.17 L (2 metal can kit)

3.25 L (2 metal can kit)

 60 mL (2 glass bottle kit)

900 mL (2 metal can kit)

4.24 L (2 metal can kit)

 250 mL (2 metal can kit)

810 mL (2 metal can kit)

3.25 L (2 metal can kit)

        

MG Chemicals 1210 Corporate Drive, Burlington, Ontario, Canada L7L 5R6
North America: +(1)800-340-0772 International: +(1) 905-331-1396 Europe: +(44)1663 362888

15 January 2021 – Version 1.5
www.mgchemicals.com

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