Medical Coating Markets

Interventional Cardiology

guide wires core wiresPrecision Coating applies medical grade PTFE to devices used in interventional cardiology procedures focused on catheter-based treatment of structural heart diseases. Catheterization involves the insertion of a sheath into a peripheral artery or vein and cannulating the heart under X-ray visualization. A typical procedure would involve the deployment of stents and balloons to care for an acute myocardial infarction.

Guide Wires and Core Wires

Typical devices coated in interventional cardiology procedures are guide wires and core wires. PTFE provides low friction to a wire allowing for ease of insertion of a catheter and high release (non-stick) to prevent blood from clotting on the wire. Wire sizes range from 0.013” to 0.022” diameter with coating tolerances from 0.0002” to 0.0007”.


A long metal tube, a hypotube is a critical component in interventional cardiology devices as well as raw material for needles. PTFE coatings are applied to hypotubes of various lengths and diameters.

Precision Coating has over 25 years of experience coating interventional cardiology devices.

Benefits of our hypotube coating service include:

  • Low friction coating. Hypotubes can be coated in black, blue, or green PTFE coatings for low friction. We offer low-cure versions that do not oxidize the outer diameter (OD) or inner diameter (ID), eliminating the need for post-tarnish removal.
  • Selective area coating. Selective coating of areas or masking of non-coated marker band surfaces is well within our capabilities.


Drill Bits/Augers

Precision Coating has long applied medical PTFE to orthopedic devices such as augers used in drilling applications. The coating is durable and abrasion resistant to withstand higher rotational speeds. Tight coating tolerances and low friction properties of the coating allow the device to be deployed easily.


PTFE coatings are critical to functional performance of neurovascular guide wires for the treatment of intracranial aneurysms. Precision Coating applies PTFE coatings to wires as thin at .004” diameter holding deposition tolerances to 0.0002” to 0.0005” per surface.


Endoscopic devices constructed of an inner core wire (or mandrel) and outer spiral coil requires highly accurate PTFE coatings that do not bridge the coils and do not impact the stiffness of the device. Precision Coating has developed a coating deposition technique to ensure all coated coils meet the designed specifications.


Orthodontic archwires are coated with PTFE primarily for aesthetic reasons with Precision Coating offering many colors from off-white to blue and red. Archwires are either nickel-titanium (Nitinol) or stainless steel and come in rectangular and round shapes. Precision Coating has developed a proprietary process to coat the labial surface of a rectangular archwire.