Introduction to DermaBak Materials

DermaBak Materials are a family of polyester-based urethane copolymers used for medical device applications. They offer a unique combination of properties that make them well-suited for long-term skin contact applications like ostomy flanges, wound dressings, and tape backings. Some key features of DermaBak materials include:

Biocompatibility

DermaBak materials have passed extensive biocompatibility testing according to ISO 10993 and are considered non-cytotoxic, non-irritating, and non-sensitizing. This makes them safe for use in direct contact with breached or compromised skin.

Breathability

The polyester-based chemistry gives DermaBak materials an inherent breathability that allows moisture vapor transmission and prevents heat buildup. This breathability helps maintain healthy skin underneath medical devices.

Flexibility

DermaBak materials are flexible even at low thicknesses, allowing them to conform to body contours and movements. This flexibility improves wearing comfort for the patient.

Adhesion

With the right adhesive system, DermaBak materials can form secure bonds to both skin and ostomy appliances that resist edge lift and leakage over multi-day wear times.

DermaBak Material Grades

DermaBak materials are available in a range of grades optimized for different applications:

DermaBak 2120

A soft, flexible tape backing material designed for gentle adhesion in wound care and light medical device applications. Offers a high moisture vapor transmission rate (MVTR).

DermaBak 2140

A medium durometer backing material with increased tensile properties for more demanding applications like ostomy flanges and thick foam tapes. Retains flexibility and breathability.

DermaBak 2160

A firmer durometer backing with further increased tensile strength and rigidity for durable medical devices requiring reinforcement.

DermaBak 2180

The highest durometer DermaBak for maximum stiffness in orthopedic devices and splints that require rigid support.

Applications of DermaBak Materials

With their unique set of properties, DermaBak materials are commonly used in the following medical applications:

• Ostomy flanges and bags
• Advanced wound care dressings
• Surgical drapes and incise films
• Medical tapes and fixation devices
• Orthopedic braces, splints, and supports
• Diabetic wound care products
• Burn dressings and scar treatment products

DermaBak Processing Methods

DermaBak materials can be converted into finished medical components using:

• Die cutting
• Laser cutting
• Thermal bonding
• RF welding
• Sonic welding
• Adhesive lamination

As thermoplastic polyurethanes, they can also be thermoformed into 3D shapes if desired.

DermaBak Material Suppliers

DermaBak materials are sold under different brand names by several major suppliers:

• AdvanSource Biomaterials (DermaBak)
• Lubrizol (Estane)
• DSM (Arnitel)
• Covestro (Texin)

These companies offer a range of standard and custom grades suited to different applications.

FAQ on DermaBak Materials

What are the key advantages of DermaBak materials?

DermaBak offers a unique combination of breathability, flexibility, adhesion, and biocompatibility ideal for skin contact medical devices requiring multi-day wear times.

How do DermaBak materials compare to silicone?

While silicone is also highly biocompatible, DermaBak offers better breathability and a wider range of durometers/stiffness. Silicone also requires different processing methods.

Can DermaBak materials be sterilized?

Yes, DermaBak withstands sterilization by ethylene oxide, gamma irradiation, and other standard methods.

Does DermaBak contain latex or plasticizers?

No, DermaBak is formulated without latex proteins or plasticizers that could leach out and cause skin irritation.

Are DermaBak materials available with adhesives?

Many suppliers offer DermaBak with pre-applied medical grade acrylic, silicone, or hydrocolloid adhesives for ostomy and wound care applications.