• Item Name: PERMABOND® 820
• Manufacturer: Permabond
• Technologies: Ethyl cyanoacrylate
• Color: Colourless
• Cure Type: Ambient temperature, moisture-activated
• Package Size: Contact to Techniq VN for details.
• Shelf Life: 12 months
PERMABOND® 820 is a low-viscosity ethyl cyanoacrylate adhesive designed for high temperature resistance and rapid curing. It bonds effectively to rubber, metal, and plastics, while being easy to use (single component, no mixing, no heat cure required). With ISO10993 cytotoxicity approval, it is suitable for medical device applications.
Bonding rubber, plastics, and metals.
Medical device assembly (biocompatible, cytotoxicity-approved).
High-speed production lines requiring fast fixture times.
Situations where heat resistance is needed (brief exposure up to ~200°C).
| Property | Value |
|---|---|
| Chemical composition | Ethyl cyanoacrylate |
| Appearance | Colourless |
| Viscosity @ 25°C | 90–110 mPa·s |
| Specific gravity | 1.06 |
| Maximum gap fill | 0.15 mm (0.006 in) |
| Cure speed (steel, Buna N rubber, phenolic) | 10–15 sec |
| Full strength | 24 hours |
| Property | Value |
|---|---|
| Shear strength (ASTM D1002, steel) | 19–23 N/mm² (2800–3300 psi) |
| Tensile strength | 17 N/mm² (2500 psi) |
| Glass transition temperature | 58°C (140°F) |
| Coefficient of thermal expansion | 90 × 10⁻⁶ mm/mm/°C |
| Dielectric strength | 10 mV/mm |
| Thermal conductivity | 0.1 W/(m·K) |
| Hardness | 85 Shore D |
| Temperature resistance | -55°C to ~150°C continuous; brief exposure up to ~200°C |
| Chemical resistance (1000h at 22°C) | Resistant to humidity, gasoline, motor oil, water, ethanol, isopropanol; not recommended for strong oxidizers or polar solvents |
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