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Loctite SI 5145 Electronics-Grade Silicone Sealant

SI 5145

Overview

Loctite SI 5145 is a translucent, 1-part, neutral-curing alkoxy silicone specifically formulated for bonding, sealing and coating electronic devices in military, automotive and industrial electronic applications. Its non-slumping nature makes it ideal for reinforcing and strain-relieving delicate components, resisting weathering, moisture and ozone from -50°C to 200°C, and it's tested to Mil-A-46146B.

Specifications

Color
Translucent
Strength
High
Base Type
Alkoxy silicone (neutral cure, non-corrosive)
Cure Type
Room temperature vulcanization (RTV) — neutral moisture cure
Service Temperature
-50°C to 200°C (-58°F to 392°F)
Certifications
Mil-A-46146B tested

Technical Information

  • Non-corrosive neutral cure — safe near sensitive metals
  • Non-slumping, ideal for strain relief
  • Tack-free in 5 hours or less

Typical Applications

  • Bonding and strain-relieving delicate electronic components
  • Sealing and coating military, automotive and industrial electronics
  • Reinforcing PCB assemblies

Industries

Electronics & AssemblyAutomotiveDefense & Aerospace

Technical Documents

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