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Fluoridated Parylene AF4
Parylene coatings are ultra-thin, pinhole-free conformal coating. Parylenes are ideally suited for use as conformal coatings in a wide variety of applications, such as automotive, medical, electronics, and semiconductor industries.Parylene coatings are chemically inert and optically transparent and have excellent barrier properties. Parylene N,C,D have been widely used in industrail coating for a couple of decades.


Aliphatic side-chained Parylene AF4 (CAS# 3345-29-7)

 

Exceptional  properties of: 

  • High temperature(350 degree C) stability
  • UV exposure resistance
  • Unsurpassed Oxidation stability
  • lowest  power dissipation factor
  • Low Oxygen TR, Low water WTR
  • Dry lubricity(low friction coefficient)
  • Hydrophobic, self-clean(lotus-effect)
  • Low gas permeability
  • Chemical solvent inert
  • Dielectric strength

Parylene AF-4 is a PTFE (Teflon) analogue in the sense that its aliphatic chemistry has the repeat unit -CF2- and as a result has superior oxidative and UV stability.

Parylene AF-4 has been used to protect outdoor LED displays and lighting from water, salt and pollutants successfully.      
                                                                    



Low Temperature Process 


Non-stressed Parylene AF4 film  has been achieved by its room temperature CVD deposition process that is helpful for process integration and application.  

GlobalTop-Material is proudly providing with Parylene AF4 dimer and related materials. The latter include precursors such as liquid TFPX , liquid CFB and liquid BFB for differnt process requirements and developments.

Proprietary synthesis processes in Parylene AF4 dimer and theri precursors will quarante the outstanding purity and volume production capability.

The highest purity commercial grade AF-EP is 99.5%. 

cvd

af4 application


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