Please stop adding inappropriate external links to Wikipedia, as you did to Polytetrafluoroethylene. It is considered spamming and Wikipedia is not a vehicle for advertising or promotion. Because Wikipedia uses nofollow tags, additions of links to Wikipedia will not alter search engine rankings. If you continue spamming, you will be blocked from editing Wikipedia. Materialscientist (talk) 03:12, 29 December 2009 (UTC)Reply

December 2009 edit

  This is your last warning. You will be blocked from editing the next time you vandalize a page, as you did with this edit to Polytetrafluoroethylene. Stroppolo (talk) 03:14, 29 December 2009 (UTC)Reply

 
You have been blocked indefinitely from editing because your account is being used only for spam, advertising, or promotion. If you believe this block is unjustified you may contest this block by adding the text {{unblock|Your reason here}} below, but you should read our guide to appealing blocks first.

Materialscientist (talk) 03:19, 29 December 2009 (UTC)Reply