MG Chemicals 841ER-3.25L, Nickel Epoxy Conductive Paint, 3.25L 2 Can Kit, Case of 5
MG Chemicals 841ER-3.25L — Nickel Epoxy Conductive Paint, 2-Part 3.25L Kit, Case of 5
MG Chemicals 841ER-3.25L (SKU: 841ER-3.25L) is a 2-part nickel epoxy conductive paint pigmented with highly conductive nickel flake. When cured, it produces a smooth, extremely durable coating with excellent abrasion, scratch, mar, corrosion, and chemical resistance. Adheres strongly to metal, glass, ceramics, and most plastics. Used for RFI/EMI shielding, galvanic corrosion resistance between mated surfaces, and grounding in harsh environments. Supplied as a 2-can kit (3.25L net volume, 5.34kg net weight), sold in cases of 5 kits.
Key Specifications
| Specification | Value |
|---|---|
| Part Number / SKU | 841ER-3.25L |
| Type | 2-part nickel epoxy conductive paint |
| Conductive Pigment | Nickel flake |
| Net Volume | 3.25 L |
| Net Weight | 5.34 kg |
| Packaging | 2-can kit |
| Case Quantity | 5 kits per case |
| Finish | Smooth, durable |
| Substrate Adhesion | Metal, glass, ceramics, most plastics |
| Abrasion/Scratch Resistance | Excellent |
| Corrosion/Salt Fog Resistance | Excellent |
| Solvent Resistance | Strong |
| Brand | MG Chemicals |
Key Features
- Good RFI shielding — nickel flake pigment provides effective RFI/EMI shielding for enclosures, housings, and electronic assemblies
- Galvanic corrosion resistance — can be applied between mated dissimilar metal surfaces to reduce galvanic corrosion
- Extreme durability — abrasion, scratch, mar, and solvent resistant cured coating for harsh environment use
- Excellent corrosion and salt fog resistance — suitable for outdoor and marine environments
- Strong adhesion — bonds to metal, glass, ceramics, and most plastics without primer in many applications
- 2-part epoxy system — superior durability and chemical resistance vs. 1-part acrylic or water-based conductive paints
Frequently Asked Questions
What is the difference between 841ER (nickel epoxy) and MG Chemicals silver-coated copper epoxy paint?
The 841ER uses nickel flake as the conductive pigment, providing good RFI shielding and excellent corrosion resistance at a lower cost than silver-based paints. MG Chemicals' silver-coated copper epoxy paint offers higher conductivity and broader-band EMI shielding but at a higher price point. Use 841ER for general RFI shielding, grounding, and galvanic corrosion protection; use silver-coated copper epoxy for applications requiring maximum shielding effectiveness across a wide frequency range.
How is the 841ER mixed and applied?
The 841ER is a 2-part system — Part A (resin) and Part B (hardener) must be mixed in the correct ratio before application. Mix thoroughly and apply by brush, roller, or spray within the pot life window. Refer to the MG Chemicals TDS for mix ratio, pot life, application instructions, and cure schedule.
What surfaces does 841ER adhere to?
841ER adheres strongly to metal, glass, ceramics, and most plastics. Surface preparation (cleaning and degreasing) is recommended for maximum adhesion. Some plastics may require light abrasion or priming. Refer to the TDS for substrate-specific preparation guidance.
Can 841ER be used outdoors or in harsh environments?
Yes — the cured 841ER coating has excellent corrosion resistance, salt fog resistance, and strong solvent resistance, making it suitable for outdoor, marine, and industrial environments where the coating will be exposed to moisture, chemicals, or mechanical wear.
Is 841ER available in smaller quantities?
Yes — MG Chemicals 841ER is available in multiple sizes. The 3.25L 2-can kit is the large-format option for production use. Smaller sizes are available for bench-top, prototyping, or lower-volume applications. Contact MTE Solutions for available sizes and pricing.
