Applications

Momentive ECC3050S – Silicone Conformal Coating – High Volume PCB Assembly Protection for Electronics Industry

  • Item Name: ECC3050S

  • Manufacturer: Momentive Performance Materials

  • Technologies: Solventless, low viscosity silicone conformal coating

  • Color: Transparent

  • Cure Type: Room temperature moisture cure or low temperature oven cure (<60°C)

  • Package Size: Contact to Techniq VN for details.

  • Shelf Life: Contact to Techniq VN for details.

1. Product Overview

ECC3050S is a low-viscosity, solventless silicone conformal coating that cures rapidly at room temperature to form a soft, transparent silicone rubber. It can also be cured using a low-temperature oven (<60°C) to reduce handling times, making it suitable for high-volume production of printed circuit board assemblies, even with temperature-sensitive components. Key advantages include fast curing, low VOC formulation, excellent adhesion, low modulus for minimal stress, and suitability for spray or flow coating applications.


2. Applications

  • High-volume conformal coating of printed circuit boards (PCBs)

  • Protection of temperature-sensitive electronic components

  • Moisture and environmental protection for electronics

  • Suitable for spray or flow coating operations in controlled environments

3. Typical Properties

Property Before Curing After Curing (3 days @ 23°C/50% RH)
Viscosity (mPa·s, 23°C) 550
Tack-Free Time (min, 23°C/50% RH) 5
Cure Time (min, 23°C/50% RH) 30
Cure Time (min, 60°C/15% RH) 2
Appearance Transparent
Specific Gravity (23°C) 0.98
Hardness (Type A) 22
Volume Resistivity (MW·m / ohm·cm) 1×10⁷ / 1×10¹⁵
Dielectric Strength (kV/mm) 20 (508 v/mil)
Dielectric Loss (@60Hz) 0.001
Dielectric Constant (@60Hz) 2.60

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