Polyvinylbutyral
Self bonding wire with a polyvinylbutyral bond coat is easy to process and is used in a wide range of applications. The two major advantages of this adhesive type are its low bonding temperature which is required to bond the coils, and it's wide processing window.
Enamel properties
| Chemical base of selfbonding enamel | Selfbonding type | Suitability of bonding methods | Recommended bonding conditions | Features | Applications | |||||
| Hot air | Oven | Solvent | Elec. current | Oven bonding temperature | Solvent type | |||||
| Polyvinylbutyral | Polyvinylbutyral | AB | ++ | ++ | + | ++ | 130°C | Ethanol, Methanol | Low bonding temperature, wide process window, non-hygroscopic, low priced | Stepping motors in quartz watches, instruments, voice coils, sensors, RFID and Transponders |
| Polyvinylbutyral | BB | -- | -- | ++ | -- | N/A | ethanol methanol | solvent bonding type, slightly higher resoftening temperature than AB | same as AB | |
| Polyvinylbutyral | CB | -- | -- | ++ | -- | N/A | Ethanol Methanol | solvent bonding type, fast drying | Stepping motors, other small motors, sensors, transponder, receiver, headphones | |
Resoftening characteristics
Bonding characteristics
Hot air bonding characteristics
Solvent bonding characteristics
Oven bonding characteristics
