Acrylic Conformal Coating Spray – 12oz (MG Chemicals 419D-340G)

Protect Your Electronics with Confidence

Looking for a simple way to safeguard your circuit boards from moisture and dust? The MG Chemicals 419D Acrylic Conformal Coating Spray is an easy-to-use, fast-drying, and crystal-clear protective spray designed for everyday electronics repair, hobby, and DIY projects. This acrylic conformal coating spray is trusted by professionals and everyday users for providing strong protection in humid, dusty, and unpredictable environments.

Fast-Drying and Easy Application

Spray on a smooth, even coat in just minutes—no special equipment required. Rated for quick handling in just 10 minutes, this fast-drying conformal coating means you spend less time waiting and more time getting things done. Whether you’re protecting a computer motherboard, Arduino project, or home audio equipment, MG Chemicals 419D makes electronics protection simple. For more details, visit MG Chemicals Conformal Spray.

Clear, Durable Protection for PCBs

The MG Chemicals 419D Acrylic Conformal Coating Spray forms a transparent, flexible layer that shields against:

• Moisture, humidity, and condensation
• Dirt, dust, and corrosion
• Thermal shock and scratches
• Short circuits, static discharge, and high-voltage arcing

Your circuit boards stay cleaner and last longer—even in high-moisture or outdoor settings.

Safe, Repair-Friendly, and Environmentally Conscious

419D-340G is free of hazardous air pollutants like toluene and xylene. It gives off a low-odor, minty scent and dries into a crystal-clear finish that fluoresces under UV light for simple inspection. If repairs are needed, it’s easy to solder through or remove using MG’s recommended thinner or conformal coating remover.

• IPC-CC-830B certified and meets UL 94V-0 flame rating
• Completely reworkable and repairable
• Packaged in a convenient 12oz (340g) aerosol can
• Part number: 419D-340G

Technical Data & Performance Ratings

Property	Value
Appearance	Crystal Clear (fluoresces under UV-A light)
Solderability	Excellent
Weather/Fungus/Flexibility Resistance	Excellent
Dielectric Strength	Pass – tested to IPC‐TM‐650 2.5.7.1
Flammability	UL 94V-0
Moisture & Insulation Resistance	Excellent
Service Temperature	-65 °C to 125 °C (-85 °F to 257 °F)
Tack-Free Time	3–5 minutes
Full Cure	24 hours at room temp / 30 min at 65°C (149°F)
Viscosity (@ 23°C/73°F)	7.2 cP (0.0072 Pa·s)
Density	0.874 g/ml
Boiling Point	≥66 °C (≥150 °F)
Solids Content (Aerosol)	8.4%
Max Coverage (25µm/1mil)	2 m² per can

Perfect for Everyday Electronics Protection

Trust MG Chemicals for all your circuit board protective coating needs. The 419D Acrylic Conformal Coating Spray gives hobbyists and home users pro-level results with easy rework and no mess.
Please note: This product ships via UPS Ground only. For best results, always read and follow all safety guidelines on the can.