Silicone is chemically inert, food safe, and can withstand temperatures up to 230°C. It is also resistant to aging and degradation from sunlight and ozone; it will not break down or become discoloured if used outdoors.
Silicone sheets are used industrially for chemically resistant O-rings, seals, and gaskets. Soft sticky silicone patches are applied onto surgery (and other) scars where they create an improved healing environment.
Silicone sheeting is available on rolls in many thicknesses and colours with hardnesses ranging from 10 to 70 Shore A. Silicone has a very low surface energy; it is therefore difficult to decorate or glue silicone products without additional surface treatments. There are variants that are thermally or electrically conductive.
Make a soft reusable drinking pouch that can be sterilised by boiling in water. It could also be used for a weather-resistant sunshade that allows some light to pass through.
The sample has a hardness of 60 Shore A and an elongation at tear of 300 percent. It is covered with a thin layer of talc to prevent the sheet from sticking to itself.
You can get a small sample with a laminated information card
or you can get a sheet measuring 50 cm x 24 cm.