MG Chemicals Epoxy Conductive Paints Instructions

: June 7, 2024
: MG Chemicals

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Epoxy Conductive Paints

MG Chemicals Epoxy Conductive Paints

Protection Against EMI/RFI: Durable and Chemically Resistant

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.

Features & Benefits

2-part systems
Superior adhesion to metals and concrete
Excellent abrasion resistance
Enhanced resistance against solvents
Withstands wave solder temperatures exceeding 260°C

Applications

Military and commercial electronic enclosures
Avionic systems
Shielding paint for flooring
Conductive coating for electroplating metals
Shielding in harsh environments like engine hoods

841ER – Nickel conductive paint for electroplating metals

842ER – Silver conductive paint for premium shielding performance

843ER – Silver-coated copper conductive paint which balances cost and EMI performance

841ER, 842ER, 843ER Shielding Attenuation

| 841ER| 842ER| 843ER
---|---|---|---
UNCURED PROPERTIES
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
CURED PROPERTIES
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
AVAILABLE PACKAGING
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)

841ER SUPER SHIELD PAINT 842ER SUPER SHIELD
PAINT 843ER SUPER SHIELD PAINT

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