PERMABOND 4C20
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® 4C20 Medical Device Grade Cyanoacrylate Adhesive is a single-component, intermediate-viscosity ethyl cyanoacrylate adhesive developed for rapid bonding across small to intermediate gaps. Its 400–600 mPa·s viscosity supports controlled manual or automated dispensing, while a maximum gap fill of 0.25 mm accommodates less tightly fitted components. The adhesive is suitable for plastics, rubber, and metals and typically reaches handling strength in approximately 10 seconds on steel, Buna N rubber, and phenolic. Full strength develops in 24 hours. After cure, it provides high steel shear strength, 85 Shore D hardness, and useful electrical insulation properties.
Key features
- Intermediate viscosity: A viscosity of 400–600 mPa·s supports controlled dispensing and bonding through gaps up to 0.25 mm.
- Fast fixture performance: Typical handling strength is achieved in approximately 10 seconds on steel, Buna N rubber, and phenolic.
- Automated dispensing suitability: The one-part formulation is designed for accurate dosing in high-speed production processes.
Applications / Suitable for
- Medical-device component assembly, subject to application-specific validation
- Automated adhesive dispensing
- Bonding components with small to intermediate gaps
- High-speed industrial assembly
- Bonding plastics, rubber, and metals
TDS, SDS & Technical Documents
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 |
| Fixture time — phenolic | 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 curing conditions.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Shear strength — steel | 20–22 | N/mm² | ISO 4587; equivalent source range 2,900–3,200 psi |
| 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 |
| Thermal expansion coefficient | 90 × 10-6 | mm/mm/°C | Typical cured thermal property |
| Thermal conductivity | 0.1 | W/(m·K) | Typical cured thermal property |
| Minimum exposure temperature | -55 | °C | Depends on the bonded materials; equivalent source value -65 °F |
