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LOCTITE® SI 5368™ – Acetoxy silicone adhesive sealant – Automotive, household appliances, aeronautical industry

  • Item Name: LOCTITE® SI 5368™
  • Manufacturer: Henkel Corporation
  • Product category: Bonding/Sealing Adhesive (RTV silicone)
  • Technologies: One-component acetoxy silicone that cures at room temperature
  • Applications: Used for sealing and bonding in automotive, household electrical, and aeronautical applications, with performance up to 250 °C.
  • Color: Black paste
  • Cure type: Room temperature vulcanizing (RTV)
  • Package size: Contact to Techniq VN for details

1. Product Overview

  • Technology: Silicone
  • Chemical Type: Acetoxy silicone
  • Appearance: Black paste
  • Components: One-component (no mixing required)
  • Cure Type: Room temperature vulcanizing (RTV)
  • Application: Bonding and sealing
  • Temperature Resistance: Up to 250°C
  • Industries: Automotive, household electrical appliances, aeronautical

2. Applications

  • Used mainly for sealing applications
  • Can also be used for bonding and high-temperature protection
  • Suitable for various industrial fields

3. Typical Properties

Uncured Properties
Property Value
Specific Gravity @ 20°C 1.04
Extrusion Rate (3 mm nozzle, 0.6 MPa, 25°C) 100 g/min
Flash Point See SDS
Curing Properties
  • Surface Cure: Tack-free in 5 minutes at 23±2°C / 50±5% RH
  • Depth of Cure: 5 mm in 24 hours under standard conditions
Cured Properties (After 1 Week at 25°C / 50±5% RH)
Property Value Standard
Tensile Strength 2.2 N/mm² (320 psi) ISO 37
Tensile Modulus 0.6 N/mm² (90 psi) ISO 37
Elongation at Break 435% ISO 37
Shore Hardness 26 (Durometer A) ISO 868
Dielectric Constant (1 MHz) 3 IEC 60250
Dielectric Breakdown Strength 20 kV/mm IEC 60243-1
Volume Resistivity 2×10¹⁵ Ω·cm IEC 60093

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