For what primary purpose do you need an adhesive solution for your device?
Holding a device to a skin adhesive patch
To address the specific requirements of both the device material and the skin patch, it is common to combine two different adhesives, leading to optimal durability and efficacy of medical device applications.
When connecting a device to a skin adhesive patch (or skin contact layer), you will need a specialized adhesive solution, commonly known as a tie-layer or construction layer. These layers serve as a crucial intermediary by bonding well to both the device material and the top surface of the skin adhesive. Although tie-layers usually do not directly contact the patient’s skin, they must be compatible with the skin adhesive patch.
Ensuring the permanent attachment of the device to the skin adhesive is vital for its functionality over time. Therefore, it is essential to select materials and adhesives that retain their integrity and adhesion in various conditions, including moisture and movement. Usually, acrylic adhesives are used for tie-layers because they bond well to a variety of materials.
If the device is made from silicone, a silicone adhesive must be used to bond to the device, and typically an acrylic adhesive is used to bond to the skin-contact layer.