Industries

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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