DOWSIL 3145 RTV Sealant
Clear or Gray Available
MIL-A-46146
Dow 3145 Adhesive Sealant
305ml one Bottle

One-part, moisture RTV, non-flow, high strength, UL and Mil Spec.

Uses
Sealing openings in modules and housings.
Adding mechanical stability to individual components.
Assembly of components on PWBs.
Sealing in and around wired and electrical leads.

Temperature Range: -45 °C ~ 200 °C

Benefits
Non-flowing
High tensile strength and elongation
Enhanced thermal stability
MIL-A-46146 Group II/III, TY I
No mixing required
Room temperature cure, no ovens required
Faster in-line processing with optional heat acceleration
Can be considered for uses with Mil Spec requirements

Application Benefits
Non-Slump
Primerless Adhesion

Use: Battery Pack, Boards and Assemblies, Components, Housings
Water Resistant

Certifications & Standards
Regulatory Approvals: MIL Spec

Product Use and Formulating
Cure Characteristics: Room Temperature Long Working Time > 10 min
Cure Type: Alkoxy Cure, Condensation Cure, Methoxy Cure
Number of Parts: 1 part
Room Temperature Cure: 48 Hours
Tack-Free Time-50% RH: 55 Minutes

Typical Properties
Adhesion to: Glass, Nylon 6/6
Color: Clear, Grey
Dielectric Constant at 100 Hz: 2.83
Dielectric Constant at 100 kHz: 2.83
Dielectric Strength: 500 volts per mil v/mil
Dissipation Factor at 100 Hz: Durometer - Shore A: 45
Elongation: 660%
Linear CTE: 370 µm/m/Deg C
Nonflowable: Yes
Shelf Life: 360 Days
Specific Gravity: 1.1 @ 25°C
Tensile Strength: 940 psi
Volume Resistivity: 4.4e+014 Ω·cm