Making Solprene Rubber - 1979 is rated/received certificates of: Belgium:KT
Injection Moulding of Solprene Teleblock Rubber - 1975 is rated/received certificates of: Belgium:KT
The Rubber Gun - 1977 is rated/received certificates of: Netherlands:16
Rubber Duckie - 2004 V is rated/received certificates of: USA:PG-13 (original rating)
Check and Rubber Check - 1931 is rated/received certificates of: USA:Passed (National Board of Review)
Rubber Johnny - 2005 is rated/received certificates of: Canada:G (Quebec) (DVD rating) Italy:VM14 (DVD rating) UK:15
Wibbly Pig - 2009 Rubber Ball Train 1-21 is rated/received certificates of: Australia:G
Law and Order - 1990 Rubber Room 20-23 is rated/received certificates of: USA:TV-14 (V)
The Ricky Gervais Show - 2010 Leg Rubber 2-10 is rated/received certificates of: USA:TV-MA
Stan Lee's Superhumans - 2010 Rubber Band Man 1-7 is rated/received certificates of: USA:TV-PG
Fact or Faked Paranormal Files - 2010 Burning Rubber Hyperjump 1-1 is rated/received certificates of: UK:PG
Rubber basically if vulcanized contains small amounts of Sulphur and Carbon as the main component.