PERMABOND ET-5428
Harmonization Code : 3214.10.00 | Putty and other mastics | Resin cements, caulking compounds and other mastics
Main features
- 5 mm Composite Gap Filling
- 30-45 Minute Handling Strength
- High Shear and Peel Strength
Product Description
Permabond ET5428 is a two-part thixotropic epoxy adhesive formulated for tough, high-strength composite assembly bonding. Its controlled-flow consistency fills gaps up to 5 mm, while the 2:1 mix ratio and 10-20 minute pot life at 23 deg C support measured mixing or cartridge dispensing. Handling strength is reached in 30-45 minutes, and full cure develops in 24-48 hours at 23 deg C or 1 hour at 60 deg C. Typical cured performance includes 28-34 N/mm2 shear strength on mild steel and 150-250 N/25 mm peel strength on aluminum.
Key features
- Composite Assembly Bonding: Formulated for tough, high-strength bonding of composite assemblies.
- 5 mm Gap Fill: Controlled-flow thixotropy fills gaps up to 5 mm.
- Rapid Handling: Reaches handling strength in 30-45 minutes at 23 deg C.
Applications
Applications include structural bonding of composite assemblies and gap-filling epoxy bonds that require controlled flow, high shear strength, and high peel strength.
Technical Specifications
General Properties
Other Properties
Mechanical Properties
Thermal Properties
Electrical Properties
Additional Information
As supplied / before processing
Part A and Part B values are shown separately; processing values apply after the stated 2:1 mix ratio.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Part A viscosity | 115,000 | mPa s | 20 rpm at 25 deg C |
| Part B viscosity | 200,000 | mPa s | 20 rpm at 25 deg C |
| Specific gravity | Part A: 1.1; Part B: 1.1 | As supplied | |
| Mix ratio | 2:1 | By volume and by weight | |
| Maximum gap fill | 5 | mm | Typical curing property |
| Usable / pot life | 10-20 | minutes | 10 g mixed at 23 deg C |
| Handling time | 30-45 | minutes | At 23 deg C |
| Full cure | 24-48 hours; 1 hour | At 23 deg C; at 60 deg C |
After processing / final state
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Shear strength - mild steel | 28-34 | N/mm2 | ISO 4587 |
| Shear strength - aluminum | 22-28 | N/mm2 | ISO 4587 |
| Shear strength - stainless steel | 29-35 | N/mm2 | ISO 4587 |
| Peel strength - aluminum | 150-250 | N/25 mm | ISO 4578 |
| Impact strength | 30-40 | kJ/m2 | ASTM D-950 |
| Hardness | 65-75 | Shore D | ISO 868 |
| Glass transition temperature, Tg | 50-60 | deg C | Typical cured value |
