Irish consumers are being urged to boycott Israeli produce until the blockade of Gaza is lifted.
The call from the Ireland-Palestine Solidarity Campaign (IPSC) comes after they confirmed plans to send another aid flotilla to Gaza by September.
The organisation also said it was asking the Irish Government to put pressure on the EU to impose economic sanctions against Israel.
Dr Fintan Lane of the IPSC, who was on board one of the aid ships that was stormed earlier in the month said: "Hopefully we'll see the trade unions mobilise to black Israeli products."
He urged the public to write to the Government and "ask them to take the lead in demanding that the EU takes sanctions against Israel".