850G-9004 Fluoropolymer Coating

850G-9004 Acid Primer- Fluoropolymer Coating

Extreme Fluoropolymer Chemistry

Considered the “Gold Standard” coating for vascular wires, this acid primer PTFE coating represents over 40 years of research, development and refinement yielding a coating which has no recorded instances of  performance defects. This coating is uniquely strong, yet flexible enough to allow the wire to bend and respond to procedural movement. Our coatings utilize a proprietary, acid primer system, infused with PTFE allowing for an extremely low coefficient of friction, high durability and surface adhesion in an efficient one-coat system. It can also be used as a primer or one-coat finish and utilization of this water-based system provide a non-flammable and low VOC formula vs. our solvent-based coating system that is also offered.

Coating Uses

  • Hospital and Lab Equipment
  • Dental Equipment
  • Surgical Instruments
  • Electrosurgical Devices
  • Ask our team if your device or component can be coated!

Coating Equipment & Application Recommendations

All of our PTFE coatings can be applied via spray, dip or spool-to-spool methods. Proper pre-coating wire cleaning treatment and post-application curing equipment is critical to guarantee performance and durability. Acceptable curing equipment includes high-temperature ovens which can safely maintain temperatures of 246 °C  (475 °F) or utilize IR ovens. This will ensure proper sintering of the coatings onto the wire and promote the best surface characteristics that can be achieved.

Coating Property Data

Typical Film Thickness13-18 Microns
Coverage,2 m2/kg 5.48
Viscosity,3 centipoises200 – 750
Volume Solids, %10.5 – 12.5
Weight Solids, %17 – 20
Density, kg/l1.14
VOC content, US gm/L (less exempt)428
VOC content as packed, gm/L122
Maximum In-Use Temperature, °C (°F)204 (400)
Flash Point, SETA closed cup, °C (°FAbove 93 (+200L)

ASTM & ISO Standards Met


  • ASTM 1894 Coefficient of Friction
  • ASTM D3359 Adhesion Test
  • ISO 7802 Wire Wrap Test
  • ISO 11070 Corrosion Resistance Test
  • Coated smooth stainless steel panels passed Adhesion test, ASTM-3359
  • Coated stainless steel catheter guidewires passed flexibility/adhesion tests, ISO 7802 Annex F wrapping test
  • Coated stainless steel catheter guidewires passed corrosion resistance, ISO11070 Annex B, saline soak test
All Miller-Stephenson’s formulations generate very uniform thin films which exceed all ISO and ASTM requirements.

Do you currently work with a PTFE coating that isnt meeting your requirements?

Looking to qualify or replace an existing PTFE coating?

With a wide array of coatings, you can qualify a new PTFE coating here. 

Don't have the coating equipment or experience?

This exceptional coating service is offered to any customer or OEM that does not have the ability to coat in-house or is looking to have a complete pre-coated turn-key solution product made and delivered. We offer customers the ability to utilize the coating services of the most highly regarded medical coaters in the United States. They provide strictly medical coating operations on some of the world’s most difficult geometrical device designs.

Have Questions? 

Our Team of Professionals are here to help.

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