Applications

LOCTITE® SI 5607™ – Two-part silicone for bonding/sealing

• Item Name: LOCTITE® SI 5607™
• Manufacturer: Henkel
• Technologies: Alkoxy silicone
• Color: Part A – White, Part B – Gray, Mixture – Gray
• Cure Type: Room temperature cure with atmospheric moisture
• Package Size: Contact to Avantek for details.
• Shelf Life: Contact to Avantek for details.

1. Product Overview

LOCTITE® SI 5607™ is a two-part, neutral curing silicone adhesive designed for bonding and sealing applications. It provides a medium cure speed, excellent adhesion, and a long working life after dispensing. The product is commonly used in the appliance market and general industrial applications.

  • Technology: Silicone
  • Chemical Type: Alkoxy silicone
  • Appearance:
    • Part A: White paste
    • Part B: Gray paste
    • Mixture: Gray
  • Components: Two-component system (requires mixing)
  • Mix Ratio (by volume): 2:1 (Part A: Part B)
  • Curing Mechanism: Room temperature cure, secondary cure with atmospheric moisture
  • Applications: Bonding and sealing

2. Applications

LOCTITE® SI 5607™ is suitable for applications requiring strong bonding and sealing properties, particularly in:

  • Appliance manufacturing
  • General industrial bonding and sealing
  • Situations requiring a long working life after dispensing

3. Typical Properties

Uncured Properties

Property Part A Part B Mixed
Specific Gravity @ 25°C 1.2 – 1.35 1.6 – 1.8
Viscosity (mPas) 25,000 – 60,000 (Spindle 6, 10 rpm) 20,000 – 35,000 (Shear rate 20 s-1)

Curing Properties

Property Condition Value
Skin Over Time 25°C, 50% RH 25 – 70 min
Fixture Time (Steel) 25°C 10 – 15 min
Fixture Time (Aluminum Alclad) 25°C 15 – 20 min
Full Cure Room temperature with moisture 7 days

Cured Properties

Property Condition Value
Shore Hardness (A) 24 hrs, 22°C, 50% RH 30 – 50
Tensile Strength (N/mm²) 7 days, 22°C, 50% RH 2 (290 psi)
Elongation at Break (%) 7 days, 22°C, 50% RH 180
Tear Strength (N/mm) Die C 7.4 (42 lb./in.)

Adhesion Performance

Substrate Lap Shear Strength (N/mm²)
Stainless Steel (0 gap) 1.4 (210 psi)
Stainless Steel (1 mm gap) 1.1 (165 psi)
Galvanized Steel (0 gap) 1.6 (225 psi)
Galvanized Steel (1 mm gap) 1.0 (150 psi)
Polycarbonate (0 gap) 2.0 (290 psi)
Polycarbonate (1 mm gap) 0.6 (85 psi)
Valox® (0 gap) 1.2 (170 psi)
Valox® (1 mm gap) 0.7 (105 psi)
Nylon (0 gap) 1.2 (170 psi)
Nylon (1 mm gap) 0.9 (135 psi)
Wood (Pine) (0 gap) 1.2 (180 psi)
Wood (Pine) (1 mm gap) 0.9 (125 psi)

Everwide FX244-1: High Performance for Precision Molding

FX244-1 A specialized two-part silicone rubber designed for creating high-precision molds. This material features a unique oil-bleeding property that creates a self-releasing surface, eliminating the need for external non-stick sprays during demolding.

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