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DOWSIL 3140 RTV Coating

Brand: VENOM

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DOWSIL™ 3140 RTV Coating is a one-part, solvent-free, room-temperature curing silicone coating designed to protect sensitive electronic components from environmental contaminants, moisture, and mechanical stress. Its flowable, self-leveling nature ensures comprehensive coverage, making it ideal for applications requiring enhanced solder joint protection and thin-section encapsulation.?


Product Overview

 Cure Type : Room temperature vulcanizing (RTV), moisture-cure

 Viscosity : Approximately 35,950 CP

 Tack-Free Time : Approximately 105 minutes at 25°C

 Full Cure Time : 24 to 72 hours at room temperature

 Operating Temperature Range : -50°C to +200°C

 Color : Clear to slightly hazy

 Packaging Options : Available in 90 mL tubes, 493 g cans, and 17.6 kg pails?



Key Features

 Self-Leveling and Flowable : Ensures uniform coverage over complex geometries

 Flame Resistance : Complies with UL 94 V-1 at 1.4 mm thickness

 Electrical Insulation:
 * Dielectric Strength: 450 V/mil
 * Volume Resistivity: 2.1 × 10¹? ohm=cm

 Mechanical Properties:
 * Tensile Strength: 495 psi
 * Elongation at Break: 420%
 * Hardness: Shore A 34

 Certifications: Meets MIL-A-46146, MIL-I-46058C, and IPC-CC-830 standards

 UV Indicator: Facilitates inspection under UV light?



Typical Applications

 Conformal Coating : Protects rigid and flexible printed circuit boards from moisture and contaminants

 Encapsulation : Suitable for thin-section encapsulation of electronic components

 Pin Sealing : Provides enhanced protection for pin and solder joints

 Corrosion Protection : Shields corrosion-sensitive components in harsh environments?



Safety and Handling
 
Ventilation: Use in well-ventilated areas to avoid inhalation of vapors

Personal Protective Equipment: Wear appropriate gloves and eye protection

Storage: Store in a cool, dry place below 30°C in original sealed containers

Shelf Life: 12 months from the date of manufacture when stored properly