Freudenberg - Innovating Together


Rho-Coat™ is a PTFE-free coating material for hypotube-based catheters. It is applied using our state-of-the-art proprietary application technology – Cambus Coat™, an environmentally friendly coating technique.

Rho-Coat™ provides an ultra-smooth coating for optimum lubricity and easy insertion and removal of the catheter, hypotube or wire.

Rho-Coat™ produces products with a finish similar in performance to a polymer jacket.

Rho-Coat™ can be applied to hypotubes in the creation of coated catheter shafts deployed in cardiovascular and neurovascular applications.

Rho-Coat™ Benefits

  • Ultra-smooth
  • High lubricity
  • Conformal coating
  • Excellent adhesion
  • Tight tolerances
  • PTFE & PFOA-free

Passes stringent biocompatibility testing in accordance with ISO standard 10993-1 for short-term contact of less than 24 hours with human body:

  • Cytotoxicity
  • Hemocompatibility: Direct & In-direct contact

Base Materials

Rho-Coat™ be applied to all major metal catheter shaft substrates including:

  • Stainless Steel
  • Other alloys on request

Technical specifications

Tube/Wire Diameter Range Coating Thickness Coating Colours

OD: 0.012” ~ 0.080” or 0.30mm ~ 2.00mm

Average coating thickness of 0.0002” (0.005mm) per side is consistently achieved

Typical Range: 0.0002” – 0.0009”
(0.005mm to 0.023 mm)