Our 4223F-55ML MG Urethane Conformal Coating.
4223F is a 1-part, heat curing, UL746E and IPC-CC-830B certified, thermoset urethane (UR) 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 stripper, or soldered through for repair or rework.
This PCB resin coating is considered to be one of the best conformal coatings for protecting 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.
Features and Benefits
• Certified UL 746E (File# E203094) for outdoor use
• Certified IPC-CC-830B
• Excellent corrosion resistance
• Xylene and isocyanate free
• Fluoresces under UV-A light
• Suitable for use with selective coating equipment.
Cured Properties
Resistivity 3.5 x 1013 Ω·cm
Dielectric Strength 1 000 V/mil
Dielectric Withstand Voltage >1 500 V
Insulation Resistance 1 x 1013 Ω
Moisture Insulation Resistance 1 x 1012 Ω
Dielectric Constant @ 1 MHz 0.29
Dissipation Factor @ 1 MHz 0.009
Glass Transition Temperature (Tg) 57 °C
CTE Prior Tg 130 ppm/°C
CTE After Tg 190 ppm/°C
Service Temperature Range -65–125 °C
Usage Parameters
Dry Time To Handle (1 coat) (2 coats) 15 min 25 min
Minimum Recoat Time 5 min
Recommended Film Thickness 25–75 µm
Theoretical Coverage @ 25 µm 109 400 cm2/L
Uncured Properties Viscosity @ 25 ˚C 290 cP
Density 0.89 g/mL
Percent Solids 45 %
Shelf Life 3 y
Calculated VOC 482 g/L
WARNING
