Bought a tin of this recently and can highly recommended it for bushcraft use.
http://www.outside.co.uk/cgi-bin/psProdDet.cgi/2520%7C%7CCLIMB~ON~@c~@b%7C90%7Cuser%7C1,0,0,1%7C100%7C
The blurb says:
Climb On! Bar is a completely pure (synthetic & petrochemical free), powerful skin...