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LOCTITE® SI 5367™ – Acetoxy silicone adhesive sealant – Automotive, household appliances, aeronautical industry

  • Item Name: LOCTITE® SI 5367™
  • Manufacturer: Henkel
  • Product Category: Bonding/Sealing Agent
  • Technologies: Silicone (Acetoxy silicone)
  • Applications: Designed for bonding and sealing in industrial applications such as sealing side windows in trains, heat sources, and electrical boxes.
  • Color: White paste
  • Cure Type: Room temperature vulcanizing (RTV)
  • Package Size: Contact Techniq VN for details.
  • Shelf Life: Contact Techniq VN for details.

1. Product Overview

LOCTITE® SI 5367™ is a one-component, acetoxy silicone adhesive that cures at room temperature (RTV). It enhances load-bearing and shock-absorbing characteristics in bonded areas. The product is designed for bonding, sealing, and protection applications, withstanding temperatures up to 250°C.

2. Applications

  • Sealing side windows in trains
  • Sealing heat sources (ovens, heat exchangers, steam circuits, water heaters)
  • Protection/insulation of electrical boxes
  • Bonding of HCR silicones
  • General care and maintenance across various industries

3. Typical Properties

Before Curing (Uncured State)
Property Value
Appearance White paste
Specific Gravity (@ 25°C) 1.04
Extrusion Rate (g/min) 100
Cure Type Moisture cure (RTV)
Tack-Free Time 5 min (@ 23°C, 50% RH)
After Curing (7 days @ 25°C, 50% RH, 0.5 mm thick film)
Property Value
Shore Hardness (A) 20
Elongation at Break (%) 500
Tensile Strength (N/mm²) 2 (290 psi)
Dielectric Breakdown Strength (kV/mm) 18
Volume Resistivity (Ω·cm) 1×10¹⁴
Dielectric Constant (1MHz) 2.8
Adhesion Performance (Lap Shear Strength, 7 days @ 25°C, 50% RH)
Substrate Strength
Aluminum (1 mm thick, sand-blasted) 2 N/mm² (290 psi)
Environmental Resistance (Aged @ 22°C, 5000 hours, 2 mm thick film)
Chemical Volume Swell (%) Tensile Strength Change (%) Elongation Change (%)
Sodium Carbonate (25%) -0.2 -12 -10
Sodium Chloride (25%) -0.1 0 0
Hydrochloric Acid (2%) -0.1 -8 -8
Lactic Acid (12%) 0.3 4 10
Citric Acid (12%) -0.1 -0.3 0
Soda (25%) -7 -15 -15
Bleach (Commercial) -1 -20 -15

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BERGQUIST microTIM mTIM 1028 is purpose built for riding cage assemblies in servers, switches, and routers, interfacing with electroless nickel plated copper or aluminum heat sinks. It ensures stable operation in high power transceiver modules while also extending applicability to liquid cooling components, heat pipes, and fin based dissipative structures.

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