Silicone adhesives
What are these adhesives like?
A Liquid Polymer
Silicone adhesive is the technical ‘glue’ that allows parts (tubes, cords and profiles) to be joined together or to other surfaces (metal, glass, plastic).
Unlike common glue, in the healthcare and industrial fields, silicone adhesive is a liquid or paste polymer that, when it comes into contact with moisture in the air or heat, transforms into an elastic solid.
Features
What makes it special?
What sets silicone adhesive apart from Super Glue or epoxy resin is its combined organic and inorganic nature:
- Biocompatibility: Medical-grade adhesives are formulated to avoid irritating tissue or releasing toxic substances. Many comply with the ISO 10993 standard.
- Extreme elasticity: Can stretch up to 400% or 600% without breaking. This is vital if you are gluing a tube that will be in constant motion.
- Heat resistance: Withstands autoclave sterilisation cycles (extreme heat and steam) without losing its adhesive strength.
- Airtight Seal: Not only does it bond, but it also fills gaps, acting as a ‘liquid gasket’
| Components: | Single component. |
| Vulcanisation: | at room temperature. |
| Consistency: | high. |
| Insulating capacity: | electrical insulation. |
| Food suitability: | suitable for contact with food |
Common industrial applications
Food use
Conveyor belt repair: For joining or sealing edges on belts that transport food products (bakery, meat, fruit).
Electronics Sealing
To protect sensors or circuits inside devices that will come into contact with bodily fluids.
Joining Strips
To close a silicone strip onto itself and create a large O-ring (a perfect ‘ring’ without leaks).
Prosthetics and Orthopaedics
To join different layers of soft materials that must mimic the flexibility of skin.