PERMABOND® TA4590 is a structural acrylic adhesive designed primarily for bonding metals, ferrites, ceramics and some thermoplastics. This product was specifically designed to be non-corrosive to sensitive copper parts or other electrically conductive surfaces. TA4590 is a no-mix system which has a 15-30 sec. fixture time on metal surfaces when used with Initiator 44.
FEATURES:
- Adhesion to a wide variety of substrates
- Fast cure at room temperature
- Non-drip formulation
- Acid-free and non-corrosive
- No mix application
- High shear strength
- Good impact strength
- Good chemical resistance
APPLICATIONS:
- Speaker Assembly
- Bonding Magnet to Metals
- Magnet Assembly
Physical Properties of Uncured Adhesive
Chemical composition | Urethane methacrylate |
Appearance | Blue, thixotropic |
Viscosity @ 25°C | 20rpm: 15,000 – 25,000 mPa.s (cP) 2.5rpm: 50,000 – 120,000 mPa.s (cP) |
Specific gravity (resin) |
1.1 |
Typical Curing Properties (with Initiator 44)
Ratio of use | 10:1.5 approximately |
Maximum gap fill | 0.5 mm (0.02 in) |
Fixture time (mild steel) @23°C* | 15-30 secs |
Handling time (mild steel) (0.3 N/mm² shear strength is achieved) @23°C* |
30-60 secs |
Working strength (mild steel) @23°C* | 2-3 mins |
Full cure @23°C | 24 hours |