Others were laying claim to Nelson Mandela's legacy and using it against the SA Communist Party and its allies, party secretary general Blade Nzimande said on Sunday.

In his closing address to the SACP's 13th National Congress held at the University of Zululand, Nzimande said: "Our revolution is not for sale."

Without making a direct reference to the Democratic Alliance, but referring to "those in the Western Cape", he warned that the former president's legacy was being used against the party to discredit it.

In a speech the long-serving party member again repeated calls for "tender-trepeneurs" to be flushed out of the party.

He also called on municipalities to stop outsourcing work, but instead to increase their own capacity and employ more people.

Referring to the African National Congress' recent policy conference, Nzimande said he welcomed the resolutions from that conference.

The ANC had accepted that "it can no longer be business as usual".

The SACP was more united than ever and a clear indication of this fact was that the party's leadership had been elected by consensus, Nzimande said.