Description
General description
Characteristics of Parylen AF4 coating:
Specialties:
Unmatched UV stability
Excellent thermal stability at high service temperature (350)
Unmatched oxidation stability
Completely conformal coating
Superior crevice penetration, pin hole free
Anti-saline damage
Anti-stick ion
Barrier properties:
Chemical insolubility and solvent resistant
Low water absorption
Hydrophobic properties
Low gas permeability , no out-gassing
Physical & mechanical properties:
Transparent
Light-weight and ultra-thin
Low CTE
Low coefficient of friction
Good dry lubricity
Abrasion resistance
Stabilization of components and structures
Particulate immobilization
Electrical properties:
Electrical insulation
High dielectric strength
High volume resistivity ,ohm-cm
Low dissipation factor
Low dielectric constant
Mitigation of tin whisker growth
Biocompatibility and bio-stability
USP class VI
Microorganism resistance
Application
Parylen AF₄ is extremely useful in high temperature applications and those in which long-term UV stability is required.
Aerospace
Military
Electronic
Medical
Industrial
Semiconductor (3D IC TSV electrical insulation , AMOLED De-bonding layer , Barrier layer )
Bio-MEMS electrode protection film
EWD (Electro Wetting Device) Liquid lens