Coating Services

The elevated temperature required in depositing most fluorochemistries is damaging to sensitive electronics. Several may require temperatures as high as 375 degrees C, well beyond the 80 degree C threshold of most electronic circuits.

Thin Film Partners LLC introduces 2 proprietary Low Temperature formulations LT-4 and LT-8. Launched as a high-performance, but lower cost alternative to parylene, the LT-series has found widespread use in products such as pcb/circuit cards, medical devices, automotive and defense industry products.

Properties of Thin Film LT-4 and LT-8:

  • Optically clear liquid formulation
  • Transparent, colorless film
  • Low viscosity, low surface tension solution
  • Approximately 20% fluorocarbon solids
  • Diluted with Solvent from 0.1% and greater
  • Solvent type - LT-4 (acetone, butyl acetate, MEK), LT-8 (fluorosolvent)
  • Hydrophobic, oleophobic
  • Corrosion resistant
  • High resistance to chemicals/solvents
  • Resists heat to 200C
  • Survives Gamma, E-beam and EtOH sterilization

Application and Delivery:

  • Delivery platforms – spray, dip
  • Inexpensive application
  • Suitable for roll to roll deposition
  • Air cure or low-temperature cure
  • Can be optimized for large surface area
  • Fast, easy…less need for specialized equipment
  • Excellent moisture barrier

General Properties

  • Film thickness from 200 nanometers to 2+ microns
  • Well suited for: pcb, electronics, metals, MEMS, sensors, plastics, steel,  fabrics
  • Good adhesion
  • Superior moisture and salt barrier properties
  • Adaptable and customizable chemistry
  • Re-workable, solderable

LT-4 and LT-8 – The backbone of our family of low-temperature curable fluoropolymers, LT-series are used in almost all industry segments from automotive to electronics and aviation.

  • Oleophobic and hydrophobic chemistries
  • Repels water and resistant to salt and chemicals
  • Survives prolonged heat exposure to 200° C.
  • Commercial use includes pcb and other electronics, sensors and MEMS devices, thermistors, diagnostic devices, lab glassware and plastics.

LT-4, LT-8, General Properties

  • Transparent, colorless
  • Contact angle (water) > 110°
  • Contact angle (oil) > 60°
  • Dielectric constant 2,25 (110 KHz)
  • Dielectric strength (100 V/um)
  • Continuous heat stability (100° C)
  • Max heat stability (1 hr.) (200° C)
  • Chemical resistance – Excellent
  • Refractive index (1.3)
  • Re-workable – Yes, and strippable
  • Solder-through – Yes

OPX – A very robust and abrasion resistant high performance PFPE blended with polysilane. OPX is a robust and long-lasting thin film that chemically bonds to almost any surface – silica, quartz, glass, metal, and most plastics .

  • A low surface energy film with contact angle in water of >100 degrees
  • Transparent film which, at even sub-micron layers will effectively repel water, oil and solvents and also offers a high degree of chemical resistance.
  • Anti-scratching and anti-smudging properties makes OPX an ideal solution for coating: touch-panel displays, cell phones, LCD, optical lenses and electronic boards
  • Applied as dip or spray in sub-micron layer – as thin as 20 nanometers

OPX -General Properties

  • Refractive Index 1.3
  • Contact angle (water) … 110°
  • Contact angle (mineral oil)… 70°
  • Withstands 5000+ rubs with steel wool.
  • Maintains contact angle after abrasion and exposure to IPA, acetone, others.

UVX – A PFPE/Urethane blended product that displays exceptional hardness, heat and chemical resistance, and repels moisture.

  • Used on all substrates (glass, metal, plastic).
  • UV-curable, also heat or air-dry.
  • High impact resistance
  • Super hydrophobic (>160° in water)
  • High resistance to heat and chemicals
  • Compatible with markers and pigments
  • Optimized properties at 25um
  • Can be applied to monitors and screens, electronics, photoresists, aircraft, automotive surfaces
  • Transparent, with low refractive index
  • Coating can be modified for increased hardness, scratch resistance, and/or adhesion strength to multiple substrates