Question: Can medical grade silicone be bonded to medical grade silicone parts?
Medical silicone can be bonded to medical silicone parts. When bonding medical silicone to medical silicone parts no surface pretreatment is required such as silicone primers, plasma or UV treatment. The medical silicone used to overmold the silicone part is not required to be the self bonding grade. When overmolding medical silicone to medical silicone parts the bond strength will increase over time. Other factors that affect the bond strength are contamination of the medical silicone part to be overmolded, and processing perimeters have a great affect.