Because Formacoat is independent, we can work with a wide variety of coating types. These include :
- Traditional Hydrogels: The main class of hydrophilic coatings called "hydrogels." A hydrogel coating absorbs water and swells upon contact with water. These wetted polymers give these coatings their lubricious feel and excellent friction reducing properties.
- Niche Hydrophilic coatings:
- Micro-hydrophilic coatings: These are thinner coatings that do not swell appreciably on contact with water but that do present a robust hydrophilic surface that can be used in certain situations to good effect to reduce the contact angle on a substrate. They are not lubricity enhancing coatings.
- Nano-hydrophilic coatings: Do not swell on contact with water, so they are not lubricious but they can reduce the contact angle to good effect for certain specialized needs.
- Nano-hydrophilic liquid applied coatings: These nano-thicknesses, non-ceramic inorganic coatings, may work better on more substrates but as niche coatings have more limited applications.
- Hydrophobic coatings:
- Several Low temperature annealing varieties suitable for some applications.
- These are not the classic, pigmented varieties that require high temperatures to anneal such as found on metal guidewires.
Formacoat has been steadily increasing vendor relationships to include a wider range of chemistries and characteristic options.
Hydrogels (classic hydrophilic coatings for lubricity enhancement): multiple options for:
- Thermal Cure Hydrogel coatings
- UV Cure Hydrogel coatings
- Grafted coatings for OD, small ID’s and complex shapes with certain substrates. These coatings, for some products, may be much less expensive than the Thermal or UV cure coatings.
Micro-hydrophilic coatings and Nano-hydrophilic coatings to alter contact angles without swelling: multiple options including:
- Liquid applied organic
- Liquid applied in-organic
- PTFE (liquid applied low temperature cure): several options
- Other more exotic materials for "super hydrophobic" characteristics.
Click here to learn how Formacoat's flexible team-based approach can help smooth out the design and regulatory process for coated medical devices.