MG Chemicals 843WB - Electromagnetic Shielding Paint
843WB is a 1-part, water-based conductive paint, pigmented with highly conductive silvercoated copper flake. It is easy to use, with no let-down and no heat cure necessary. It adheres strongly to most injection-molded plastics, such as ABS, PBT and PVA. It also bonds well to drywall and can be painted over with common architectural paints. 843WB is designed to reduce EMI/RFI interferences in architectural and electronic applications.
Product families
Applications
- Architectural Coatings
- Electronics Coatings
Product Families
- Protective Coatings
Other characteristics
- Features
Bondability, Electromagnetic Interference Shielding, Fast Drying, Low VOC, Radio Frequency Shielding (RFI)
- Product Type
1K (1 component) Coating, Conductive Coating, Waterborne Coating; 1K (1 component) Coating; Conductive Coating; Waterborne Coating
- Application Method
- Brush, Roller, Spray
- Compatible Substrates & Surfaces
- Plastics
- Markets
- Building & Construction
- Electrical & Electronics
- Storage
Store between -20 and 27 ˚C in a dry area, away from sunlight (see SDS). If exposed to freezing temperatures during storage or transport, keep product at room temperature for at least two days and ensure it is fully homogeneous prior to use.
- Shelf LIfe
- 2.5 Years
- Cure
Air Dry; Heat Cure; Allow to dry at room temperature for 24 hours, or after letting sit for 20 minutes, cure the paint in an oven for 2.5 hours @ 65 ˚C.
- Technology
- Ready-to-Use Products
- Key Attributes
Provides excellent EMI/RFI shielding over a broad range of frequencies; Non-flammable and no noxious odors; Ships as a non-DG by air; Low VOC content
- Packaging Type
- Bottles
- Cans
- Jars
- Labeling Claims
- Methyl Ethyl Ketone free
- Non-Flammable
- Xylene-free
- Quality Standards
- IPC-CC-830B
- Application Methods
- Brush
- Roller
- Spray
- Recommended Preparation
Plastic - Clean the substrate with Isopropyl Alcohol, MG #824, so the surface is free of oils, dust, and other residues.; Drywall - For new drywall, apply directly on top of the drywall primer, after the primer has properly cured.; When applying on top of existing paint, first wash the wall with a solution of T.S.P. diluted with water at a 1:10 ratio, to ensure good adhesion.; Paint Roller; This product may be applied with a standard paint roller. Thinning is not required.; Manual Spray Guns; Use a standard fluid nozzle gun to spray the paint. The settings listed below are recommendations; however, performance will vary with different brands:; When using a pressure pot and agitator, keep the agitator at low mixing speed with air pressure of 20–50 psi. Use the lowest pressure necessary to keep the particles suspended.; Selective Coating; For higher volume applications, paint can be applied via selective coating equipment. Use a system with constant fluid recirculation to keep the particles from settling in the lines. The fluid nozzle must be 1.8 mm in diameter and 5 - 10 psi fluid pressure is recommended.; Clean-up; Clean the spray system and equipment with tap water after use.
- Certifications and Compliance
- California Proposition 65
- ISO 9001
- REACH (Europe)
- RoHS Compliant
- UL 94
- Ready to Use Product Features
- Bondability
- Electromagnetic Interference Shielding
- Fast Drying
- Low VOC
- Radio Frequency Shielding (RFI)
- Compatible Substrates and Surfaces
- Plastics
Technical data
Table 1 of 4
1 row| Characteristic | Value | Unit |
|---|---|---|
| Density | 1.32 | g/mL |
Table 2 of 4
2 rows| Characteristic | Value | Unit |
|---|---|---|
| Viscosity (at 25 ˚C) | 660 | cP |
| Calculated VOC | 37 | g/L |
Table 3 of 4
3 rows| Characteristic | Value | Unit |
|---|---|---|
| Resistivity | 5.3 x 10⁻⁴ | Ω·cm |
| Surface Resistance (at 50 μm) | 0.02 | Ω/sq |
| Service Temperature Range | -40 to 120 | ˚C |
Table 4 of 4
1 row| Characteristic | Value | Unit |
|---|---|---|
| Percent Solids | 42 | % |
