Bectron® PT 4700 N is a solvent free one-component polyurethane based transparent thick film coating cured by UV irradiation and / or by moisture. The cured product is elastic with flexibility down to low temperature (-40°C) and good adhesion to most substrates. Bectron® PT 4700 N provides excellent insulation properties after severe wet storage conditions. Bectron® PT 4700 N satisfies the requirements of REACh and ROHS. Bectron® PT 4700 N can survive temperature shock and temperature cycling resistance such as -40 to +125°C (e.g. IPC Test 2.6.7.1 Class 2) for more than 500 cycles.
Features
- Rapid UV curing
- Moisture shadow-cure
- Temp-Shock (-40°C/125°C) > 500 cycles
- SIR 85 / 85: > 500 MΩ / 500h
- Good flexibility to -40°C
- Good Adhesion
- Good dielectric properties
- Solvent free
- Low viscosity
- ROHS and REACh compliant
- UL V-0 compliant
Applications
Bectron® PT 4700 N is versatile VOC-free conformal coating with excellent electrical performance, particularly suitable for electronics such as surface mount devices and hybrids. It provides good protection against moisture, corrosion and migration as well as vibration.