PERMABOND® TA439 is a two-component structural acrylic adhesive designed primarily for bonding metals, ferrites, ceramics, and some plastics. The typical fixture time is 20-40 seconds. The fast fixture time of TA439 makes it an ideal adhesive for high-speed production lines. This product provides high strength, tough, durable bonds with good impact resistance and performs well in drop tests.
TA439 is methacrylic acid-free, this means it is suitable for use on sealed electric motors and will not cause corrosion to sensitive components. Use TA439 with Initiator 41 (or Initiator 43 for use on plastics).
FEATURES:
- Adhesion to a wide variety of substrates
- Fast cure at room temperature
- No mix application
- High shear and peel strength
- Good impact strength
- Good chemical resistance
- Non-corrosive formulation
APPLICATIONS:
- Aircraft parts (TA4246 is aerospace approved)
- Automotive exterior components• Lifts, stairlifts, stairs and walkways
- Sign bonding, point of sale and shopfitting
- Bus, train, tram interiors
- Vehicle conversions, campervans
- Magnet/ferrite bonding electric motors
- Loudspeaker component bonding
PHYSICAL PROPERTIES OF UNCURED ADHESIVE
| Chemical composition | Modified acrylic – solvent free |
| Appearance | Transparent amber liquid |
| Viscosity @ 25°C | 20rpm: 15,000 – 30,000 mPa.s (cP) 2.5rpm: 45,000 – 70,000 mPa.s (cP) |
| Specific gravity (resin) | 1.1 |
TYPICAL CURING PROPERTIES
| Ratio of use | 10:1.5 approximately |
| Maximum gap fill | 0.15 mm (0.006 in) |
| Fixture time (zinc) @23°C | No gaps: 20-40 secs |
| Handling time (zinc) (0.3 N/mm² shear strength is achieved) @23°C |
No gaps: 40-75 secs |
| Working strength (zinc) @23°C |
No gaps: 3-5 mins |
| Full cure @23°C | 24 hours |
