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MG Chemicals 838AR -340G - Total Ground Carbon Conductive Spray Paint

Total Ground™ Carbon Conductive Spray Paint 838AR is an economical conductive paint that consists of a 1-part, solvent-based acrylic lacquer, pigmented with highly conductive carbon powder. It is smooth, durable, 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 provides strong corrosion resistance and is suitable for use in marine environments. 838AR is excellent for creating grounded surfaces and in low frequency RFI shielding applications, such as pickup cavities on electric guitars. It is also perfect for shielding metal detectors and other devices where a metalfilled conductive paint would cause malfunction.

Product Type: 1K (1 component) Coating, Conductive Coating, Solventborne Coating

Application Area: Electrical Components, Electroplating, Marine Applications

Compatible Substrates & Surfaces: Metal, Plastics

Features: Abrasion Resistant, Corrosion Resistant, Durable, Electrically Conductive, Electromagnetic Interference Shielding, Electromagnetic Shielding (EMI), Excellent Substrate Adhesion, Fast Drying, Radio Frequency Shielding (RFI)

Application Method: Spray

Chemical Family: Blends & Combinations

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Knowde Enhanced TDS

Identification & Functionality

Chemical Family

Features & Benefits

Labeling Claims
Key Attributes
  • Provides >50 dB of RFI shielding at frequencies <1 MHz
  • Quick dry time, no heat cure required, and easy to apply
  • Strong corrosion resistance
  • Mild solvent system, safe on polystyrenes
  • Does not contain toluene, xylene, or MEK
  • Available in liquid format (see separate TDS)

Applications & Uses

Application Method
Compatible Substrates & Surfaces
Recommended Preparation

Clean the substrate with Isopropyl Alcohol, MG #824, so the surface is free of oils, dust, and other residues.

Application Instructions

1. Shake the can vigorously.
2. Spray a test pattern to ensure good flow quality.
3. Tilt the board at 45° and spray a thin, even coat from a distance of 20–25 cm (8–10 in). Use spray-andrelease strokes with an even motion to avoid paint buildup in one spot. Start and end each stroke off the surface.
4. Wait 3 min before applying another coat, to avoid trapping solvent.
5. Rotate the board 90° and spray again to ensure good coverage.
6. Apply additional coats until desired thickness is achieved (go to step 3).
7. Let dry 3 min at room temperature before applying heat cure.
8. After use, clear the nozzle by inverting the can and briefly spraying until clear propellant comes out.

Properties

Physical Form
Physical Properties
ValueUnitsTest Method / Conditions
Density0.84g/mL
Typical Properties
ValueUnitsTest Method / Conditions
Calculated VOC587g/L
Cure Times (at 22 ˚C 30 min at 65 ˚C)24Hours
Minimum Film Thickness25μm
Recoat Time3Minutes
Recommended Film Thickness50μm
Theoretical Coverage (at 2 mil, based on 100% transfer efficiency)20016cm2
Viscosity (at 25 ˚C)46cP
Cured Properties
ValueUnitsTest Method / Conditions
Resistivity6.9 x 10⁻¹Ω·cm
Salt Fog Resistance (at 35 °C ,96 h)Excellent
Service Temperature Range-40 to 120˚C
Surface Resistance (at 50 μm)110Ω/sq
Uncured Properties
ValueUnitsTest Method / Conditions
Solids Content7.6%
Cure Instructions
Allow to dry at room temperature for 24 hours, or after letting sit for 3 minutes, cure the paint in an oven for 30 minutes @ 65 ˚C.

Regulatory & Compliance

Chemical Inventories

Technical Details & Test Data

Surface Resistance by Paint Thickness

MG Chemicals 838AR -340G - Total Ground Carbon Conductive Spray Paint - Surface Resistance By Paint Thickness

Shielding Attenuation

MG Chemicals 838AR -340G - Total Ground Carbon Conductive Spray Paint - Shielding Attenuation

Packaging & Availability

Packaging Type
Available Packaging
Cat. No. Packaging Net Vol. Net Wt.
838AR-340G Aerosol 442 mL 340 g

 

Storage & Handling

Shelf Life
3 Years
Storage
Store between -5 and 40 ˚C in a dry area, away from sunlight (see SDS).