MG Chemicals 422 3F – Urethane Conformal Coating
- Chemical Family
- Polyurethanes (PU)
4223F is a 1-part, heat curing, UL 746E certified, thermoset polyurethane conformal coating. It cures to a durable, flexible, scratch resistant, and smooth finish. It is easy to apply and can be handled in 15 minutes. It cures in only 2 hours at 100 °C (212 °F). It may be removed with appropriate strippers, or soldered through for repair or rework. 4223F protects printed circuit boards in chemically challenging environments. It provides strong protection against aggressive chemicals, corrosion, moisture, fungus, dirt, dust, thermal shock, abrasion, short circuit, high-voltage arcing, and static discharge.
Product families
- Protective Coatings
Other characteristics
- Features
Anti-Static, Chemical Resistant, Corrosion Resistant, Durable, Ease of Handling, Excellent Dirt Pick-up Resistance, Excellent Moisture Resistance, Excellent Salt Spray Resistance, Flexible, Fungus Resistant, Good Scratch Resistance, Thermal Shock Resistant
- Product Type
- 1K (1 component) Coating, Conformal Coating
- 1K (1 component) Coating
- Conformal Coating
- Application Method
- Brush, Dip Coating, Spray
- Dip Coat
Due to the dual curing nature of this coating, it is important to control exposure to light and moisture to prevent premature curing.
- Certified
Certified UL 746E (File# E203094) for outdoor use; Certified IPC-CC-830B; IPC-CC-830B and UL746E
- Shelf LIfe
- 3 Years
- Cure
Heat Cure. The product will not cure at room temperature. After letting sit for 15 minutes, cure the coating in an oven at one of these time/temperature options:
- Applications
Improves reliability, and lengthens the life of electronic circuitry; Protects circuitry in coastal, tropical, marine, and other humid environments; Allows electronic devices to operate in harsh environments; Allows traces to be placed closer together by preventing arcing
- Technology
- Ready-to-Use Products
- Key Attributes
Clear, thin, flexible, and durable; Protects against dust, humidity, salt spray, corrosion, and chemical fogs; Protects against electrical arching, shorts, static discharges, and thermal shocks; Contains a UV indicator for optical inspection; Applied by brushing, dipping, manual and selective spraying; Available in liquid, aerosol, and pen; IPC and UL certified versions; Excellent corrosion resistance; Xylene and isocyanate free; Fluoresces under UV-A light; Suitable for use with selective coating equipment
- Packaging Type
- Bottles
- Cans
- Pails
- Labeling Claims
- Isocyanates-free
- Manual Spray Guns
4200UV can be readily sprayed using conventional spray guns. Ensure air lines are dry to prevent any premature curing. Use a standard fluid nozzle gun with a minimum tip diameter of 0.8–1.0 mm. The settings listed below are recommendations; however, performance will vary with different brands:
- Quality Standards
- IPC-CC-830B
- Selective Coating
For higher volume applications, coating can be applied via selective coating equipment. The settings listed below are recommendations and performance will vary with different brands.
- Application Methods
- Brush
- Dip Coating
- Spray
- Chemical Inventories
- AICS (Australia)
- DSL (Canada)
- EINECS (EU)
- ENCS (Japan)
- IECSC (China)
- KECI (Korea)
- NZIoC (New Zealand)
- PICCS (Phillipines)
- Ready to Use Product Features
- Anti-Static
- Chemical Resistant
- Corrosion Resistant
- Durable
- Ease of Handling
- Excellent Dirt Pick-up Resistance
- Excellent Moisture Resistance
- Excellent Salt Spray Resistance
Technical data
Table 1 of 3
5 rows| Characteristic | Value | Unit |
|---|---|---|
| Theoretical Coverage (at 25 Μm) | 109 400 | cm2/L |
| Recommended Film Thickness | 25-75 | μm |
| Minimum Recoat Time | 5 | minute |
| Dry Time to Handle (1 coat) | 15 | minute |
| Dry Time to Handle (2 coats) | 25 | minute |
Table 2 of 3
11 rows| Characteristic | Value | Unit |
|---|---|---|
| Resistivity | 3.5 x 10⁽¹³⁾ | Ω·cm |
| Dielectric Withstand Voltage | min. 1500 | V |
| Service Temperature Range | -65 to 125 | °C |
| Dielectric Strength | 1 000 | V/mil |
| Dissipation Factor (at 1 MHz) | 0.009 | — |
| Moisture Insulation Resistance | 1 x 10⁽¹²⁾ | Ω |
| Dielectric Constant (at 1 MHz) | 0.29 | — |
| Insulation Resistance | 1 x 10⁽¹³⁾ | Ω |
| Glass Transition Temperature (Tg) | 57 | °C |
| CTE (Prior Tg) | 130 | ppm/˚C |
| CTE (After Tg) | 190 | ppm/˚C |
Table 3 of 3
4 rows| Characteristic | Value | Unit |
|---|---|---|
| Calculated VOC | 482 | g/L |
| Density | 0.89 | g/mL |
| Solid Content | 45 | % |
| Viscosity (at 25˚C) | 290 | cP |
