• Item Name: LOCTITE® SI 5606™
• Manufacturer: Henkel
• Technologies: Two-part Silicone, Alkoxy, Thixotropic
• Color: Part A White, Part B Grey/Black, Mixed Grey
• Cure Type: Room temperature cure, atmospheric moisture
• Package Size: Contact Henkel for details
• Shelf Life: Contact Henkel for details
LOCTITE® SI 5606™ is a two-component, alkoxy-based silicone adhesive and sealant with a neutral cure system. Part A is a white paste, and Part B is a grey/black paste; when mixed in a 4:1 volume ratio, the product forms a grey thixotropic paste. It cures at room temperature with atmospheric moisture, offering moderate working life and quick cure speed. Designed for bonding and sealing applications, it provides structural strength and durability after curing.
Bonding and sealing in household appliances.
General applications requiring moderate working time after dispensing.
Suitable for substrates including steel, aluminum, stainless steel, galvanized steel, polycarbonate, Valox®, nylon, and wood.
| Property | Part A | Part B | Mixed / After Curing (7 days @ 22°C / 50% RH) |
|---|---|---|---|
| Specific Gravity @ 25°C | 1.2–1.35 | 1.6–1.8 | – |
| Viscosity | 25,000–60,000 mPa·s | 25,000–55,000 mPa·s | – |
| Skin Over Time | – | – | 10–40 min |
| Fixture Time (Steel, ISO 4587) | – | – | 4–5 min (0 gap) |
| Shore Hardness (ISO 868, Shore A) | – | – | 25–60 |
| Tensile Strength (ISO 527-3) | – | – | 1.8 N/mm² (250 psi) |
| Elongation at Break (ISO 527-3) | – | – | 185 % |
| Tensile Modulus (ISO 527-3) | – | – | 0.6 N/mm² (100 psi) |
| Tear Strength (ISO 34-1, Die C) | – | – | 7.7 N/mm (44 lb/in) |
| Dielectric Constant / Dissipation Factor (IEC 60250) | – | – | 1 kHz: 3.57 / 0.003 1 MHz: 3.55 / 0.002 |
| Volume Resistivity (IEC 60093) | – | – | 9.2×10¹⁴ Ω·cm |
| Dielectric Breakdown Strength (IEC 60243-1) | – | – | 20.2 kV/mm |
| Lap Shear Strength (ISO 4587, 1 mm gap) | – | – | Stainless Steel: 0.9 N/mm² Alclad: ≥1.0 N/mm² Galvanized Steel: 0.9 N/mm² Polycarbonate: 0.7 N/mm² Valox®: 0.5 N/mm² Nylon: 0.9 N/mm² Wood: 1.2 N/mm² |
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