Silicone Rubber for Medical Device Applications
Selecting an acceptable elastomer for medical and other applications can be a challenge. Product designers, engineers and managers have to evaluate different material properties and manufacturability to assure product reliability and costs. There are many materials and processes to choose from. It is the responsibility of the designer to make the right choice.
Medical grades of silicone are both safe and reliable since they do not melt or promote fire, are short-circuit-proof and have a high dielectric strength. In the event of a fire, they do not generate toxic vapors or residues. Silicone rubber used in medical applications also has the following UNIQUE characteristics and advantages:
- Inert, odorless, tasteless, stainless – (ideal for medical and food applications)
- Hygienic – they give bacteria and fungi little chance to spread.
- Extreme temperature applications, -180ºF to 600ºF (-118ºC to 316ºC)
- Easy to clean – even with dilute acids such as vinegar.
- Can be steam sterilized and are dishwasher safe.
- Thermal resistance – (special flame retardant compounds are available)
- High resistance to weathering and oxidation
- Excellent electrical qualities – (superior dielectric and insulation characteristics in special compounds)
- Superior resistance to many chemicals
- High resistance to ozone and corona
- Superior water resistance – low water adsorption
- Lime and dirt repellent
- Colorfast and light-stable with FL color pastes
- Highly transparent and have no yellow cast
- Flexibility and Durability
- Fatigue and Compression Set Resistance
- Energy Absorption
- Long Work and Shelf Life
- Can be compounded for special properties