PERMABOND 108
Harmonization Code : 3506.10.00.00 | Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg
Main features
- 400 to 600 mPa s Viscosity Range
- 10-Second Fixturing Time
- 25 kV/mm Dielectric Strength
Product Description
PERMABOND® 108 Cyanoacrylate Adhesive is a single-component, intermediate-viscosity ethyl cyanoacrylate adhesive for bonding through small to intermediate gaps. Its 400–600 mPa·s viscosity supports controlled application and automated dispensing while retaining fast fixture performance. Typical handling strength is reached in approximately 10 seconds on steel, Buna N rubber, and phenolic, with full strength developing in 24 hours. The adhesive bonds plastics, rubber, and metals and provides a maximum recommended gap fill of 0.25 mm. After cure, it delivers high shear strength on steel and selected plastics, 85 Shore D hardness, and useful electrical insulation properties for industrial assembly.
Key features
- Intermediate viscosity: A viscosity of 400–600 mPa·s supports controlled dispensing and bonding across gaps up to 0.25 mm.
- Fast fixture performance: Typical handling strength is reached in approximately 10 seconds on steel, Buna N rubber, and phenolic.
- Multi-material bonding: Documented performance covers steel, ABS, PVC, and polycarbonate, with general suitability for plastics, rubber, and metals.
Applications / Suitable for
- Automated adhesive dispensing
- Bonding parts with small to intermediate gaps
- High-speed industrial assembly
- Bonding plastics, rubber, and metals
Technical Specifications
General Properties
Physical Properties
Mechanical Properties
Thermal Properties
Electrical Properties
Additional Information
As-supplied / before-processing properties
Typical uncured and curing properties. Values are guideline information and do not constitute product specifications.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Chemical composition | Ethyl cyanoacrylate | — | Single-component adhesive |
| Appearance | Colorless liquid | — | As supplied |
| Viscosity | 400–600 | mPa·s | At 25 °C; equivalent to cP |
| Specific gravity | 1.1 | — | Typical uncured value |
| Maximum gap fill | 0.25 | mm | Equivalent source value 0.008 in |
| Fixture time — steel | 10 | s | Time to 0.3 N/mm² shear strength |
| Fixture time — Buna N rubber | 10 | s | Time to 0.3 N/mm² shear strength |
| Full strength | 24 | h | Typical full-strength development |
After-processing / final-state properties
Typical cured performance values. Bond strength varies with substrate, surface preparation, joint gap, and cure conditions.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Shear strength — steel | 20–22 | N/mm² | ISO 4587; equivalent source range 2,900–3,200 psi |
| Shear strength — ABS | 8 | N/mm² | ISO 4587; substrate failure reported |
| Shear strength — PVC | >10 | N/mm² | ISO 4587; substrate failure reported |
| Shear strength — polycarbonate | 10 | N/mm² | ISO 4587; substrate failure reported |
| Impact strength | 3–5 | kJ/m² | ASTM D950 |
| Hardness | 85 | Shore D | ISO 868 |
| Dielectric strength | 25 | kV/mm | Typical cured electrical property |
| Dielectric constant | 2.5 | — | At 10 kHz |
