MG Chemicals 422B-340G
- Chemical Family
- Blends & Combinations
422B is a 1-part, acrylic-silicone blend conformal coating that cures to a durable, flexible and smooth finish. It is easy to apply and can be handled in only 8 minutes. It may be removed with appropriate strippers or soldered through for repair or rework. 422B is designed for applications where both high service temperature and flexibility are required. It puts minimum stress on components during thermal cycling, making it ideal for applications that involve a wide temperature range. It provides strong protection against moisture, corrosion, fungus, dirt, dust, thermal shock, short circuits, high-voltage arcing, and static discharge.
Properties
- Physical Form
- Liquid
Product families
Applications
- Electronics Coatings
- Printed Circuit Boards (PCBs)
Product Families
- Protective Coatings
Other characteristics
- Features
Arc Resistant, Chemical Resistant, Corrosion Resistant, Durable, Excellent Dirt Pick-up Resistance, Excellent Moisture Resistance, Flexible, Fungus Resistant, Good Smoothness, High Dust Control, Prevents Short Circuits, Prevents Static Discharges, Thermal Shock Resistant
- Product Type
- 1K (1 component) Adhesive, Conformal Coating
- 1K (1 component) Adhesive
- Conformal Coating
- Application Method
- Spray
- Markets
- Electrical & Electronics
- Storage
Store between -5 and 40 ˚C in a in a dry area, away from sunlight .
- Shelf LIfe
- 5 Years
- Technology
- Ready-to-Use Products
- Key Attributes
- Certified UL 94 V-0 (File# E203094)
- Maximum constant service temperature of 200 °C
- Fluoresces under UV-A light
- Excellent corrosion resistance
- Application Methods
- Spray
- Chemical Inventories
- AICS (Australia)
- ARIPS (Russia)
- DSL (Canada)
- EINECS (EU)
- ENCS (Japan)
- IECSC (China)
- INSQ (Mexico)
- KECI (Korea)
- Application Instructions
Recommended Preparation; Clean the substrate with Isopropyl Alcohol, MG #824, so the surface is free of oils, dust, and other residues.; Spray; Cure Instructions; Allow to dry at room temperature for 48 hours, or after letting sit for 10 minutes, cure the coating in an oven for 20 min @ 65 ˚C.
- Certifications and Compliance
- ISO 9001
- Ready to Use Product Features
- Arc Resistant
- Chemical Resistant
- Corrosion Resistant
- Durable
- Excellent Dirt Pick-up Resistance
- Excellent Moisture Resistance
- Flexible
- Fungus Resistant
Technical data
Table 1 of 4
1 row| Characteristic | Value | Unit |
|---|---|---|
| Density | 0.81 | g/mL |
Table 2 of 4
2 rows| Characteristic | Value | Unit |
|---|---|---|
| Viscosity (at 25 ˚C) | 6 | cP |
| Calculated VOC | 627 | g/L |
Table 3 of 4
8 rows| Characteristic | Value | Unit |
|---|---|---|
| Resistivity | 1.2 x 10¹⁵ | Ω·cm |
| Dielectric Strength | 1 056 | V/mil |
| Dielectric Withstand Voltage | min. 1500 | V |
| Dielectric Constant (at 1 MHz) | 1.99 | — |
| Dissipation Factor (at 1 MHz) | 0.012 | — |
| Glass Transition Temperature (Tg) | 29 | ˚C |
| CTE Prior Tg | 275 | ppm/˚C |
| Service Temperature Range | -40 to 200 | ˚C |
Table 4 of 4
1 row| Characteristic | Value | Unit |
|---|---|---|
| Percent Solids | 8.6 | % |
