PERMABOND TA459
Harmonization Code : 3907.30.00.40 | Epoxy Mold Compounds containing by weight more than 70 % silicon dioxide
Main features
- 20-40 Second Steel Fixture
- 20-25 N/mm2 Steel Shear
- Non-Corrosive Copper Bonding
Product Description
Permabond TA459 is a no-mix toughened acrylic structural adhesive for bonding metals, ferrites, ceramics, and selected thermoplastics. It is used with Initiator 41 or 41M, or Initiator 43 for plastics, with the initiator applied to one surface and adhesive to the other. The thixotropic formulation fills gaps up to 0.5 mm, fixtures gap-free mild steel in 20-40 seconds at 23 deg C, and reaches working strength in 3-5 minutes. After 24 hours at 25 deg C, typical steel shear strength is 20-25 N/mm2. The acid-free formulation is non-corrosive to sensitive copper and conductive surfaces.
Key features
- 20-40 Second Fixture: Fixtures gap-free mild steel in 20-40 seconds at 23 deg C.
- No-Mix Initiator Process: Uses separate adhesive and initiator application without premixing.
- Non-Corrosive Conductive-Surface Bonding: Acid-free formulation supports sensitive copper and conductive surfaces.
Applications
Applications include structural bonding of metals, ferrites, ceramics, selected thermoplastics, and sensitive conductive surfaces with the specified initiator.
Technical Specifications
No specifications available.
Additional Information
As supplied / before processing
Resin values are shown with processing values for the specified Permabond initiator system.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Appearance | Blue, thixotropic | As supplied | |
| Viscosity | 15,000-25,000 | mPa s | 20 rpm at 25 deg C |
| Low-shear viscosity | 50,000-100,000 | mPa s | 2.5 rpm at 25 deg C |
| Specific gravity | 1.1 | Resin as supplied | |
| Use ratio | Approx. 10:1.5 | Adhesive to Initiator 41 or 41M | |
| Maximum gap fill | 0.5 | mm | Typical curing property |
| Cure milestones | Fixture: 20-40 seconds; handling: 40-75 seconds; working strength: 3-5 minutes; full cure: 24 hours | Mild steel, no gap, at 23 deg C | |
| Storage temperature | 5 to 25 | deg C | Recommended storage range |
After processing / final state
Values are typical for cured adhesive; strength depends on surface preparation, gap, cure, and substrate.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Shear strength - steel | 20-25 | N/mm2 | ISO 4587; 24-hour cure at 25 deg C |
| Shear strength - steel to ferrite | >14 | N/mm2 | ISO 4587; 24-hour cure at 25 deg C; substrate failure |
| Shear strength - zinc | 12-18 | N/mm2 | ISO 4587; 24-hour cure at 25 deg C |
| Peel strength - aluminum | 85-100 | N/25 mm | ISO 4578 |
| Tensile strength | 20-30 | N/mm2 | ISO 37 |
| Impact strength | 15-20 | kJ/m2 | ASTM D-950 |
| Dielectric strength | 30-50 | kV/mm | ASTM D-149 |
| Volume resistivity | 2 x 10^13 | ohm cm | ASTM D-257 |
