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HYDAK® is Biocoat’s proprietary hydrophilic coating
used in medical devices

HYDAK® is based on hyaluronic acid (HA), a naturally occurring polysaccharide. Our bi-laminar coating platform is covalently bonded and employs a hydrogel behavior, which is what allows the substrate material to be lubricious, extremely durable and offer extremely low particulate counts.

HYDAK coatings are applied using a thermal heat curing system. In a heat cured system, the coated items are placed in an oven for a pre-identified time. Controlled heating accelerates drying of the solvent and any necessary chemical reactions taking place within the coating that allows it to bond to the surface and give it durability. Thermal heating systems enable a consistent and uniform bonding of the coating so that you can coat both the inner and outer diameter of the device.


Best-in-Class Performance

Our HYDAK coatings have tested as best-in-class in the three criteria used to measure hydrophilic coatings: friction, durability and particulates. Learn more and see the results of our testing here.

Extremely Thin & Flexible Coatings

HYDAK adds only a few microns to the overall diameter of the device surface, which allows for our coatings to be flexible as the device travels through the bodies tortuous paths.

Crosslink Chemistry

Custom engineering capabilities are possible to create a coating process to meet specific density, thickness, swelling or flexibility requirements based on your product’s unique requirements.

Multiple Sterilization Options

Devices coated with HYDAK can be sterilized using several methods including ethylene oxide, gamma and e-beam.

Easy Integration

To cure HYDAK coatings, we use convection heat ovens. Use of thermal heat allows for an uncomplicated manufacturing process, the ability to easily scale-up production and a thorough coating adherence of both the inner and outer diameters of the device.

What We Coat

Biocoat’s coatings are suitable for coating vascular catheters, guide wires and other medical devices. Biocoat has extensive experience in applying coatings to nearly all polymeric and metallic substrates including, but not limited to, the items listed below.


  • Nylon/Polyamide
  • Polueurethane
  • PEEK
  • Chronoprene
  • Tecothane
  • Tecoflex
  • Aesno
  • Polypropylene (needs Plasma treatment)
  • Polyethylene (needs Plasma treatment)

…and many more!


  • Stainless Steel
  • Nitinol
  • Platinum
  • Nickel
  • Titanium

Have a Coating Need? Request More Information.

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