Talks between Clear Medical Imaging and Unifor Local 2458 have broken off.
Two sides met today after employees voted to reject the employers latest offer last week.
The union will now apply to the Labour Board for first contract interest arbitration.
"These health care workers are clear in their demands and are simply trying to arrive at their first contract with a company that refuses to bargain. The members are asking for fairness," said Unifor National President Lana Payne.
The 120 workers from across 11 locations in Windsor, Chatham, Tecumseh, Lasalle, and Essex have been on strike since October 25, 2024.
"On Christmas Day, members will mark the two-month anniversary of their strike," said Unifor Local 2458 President Ken Durocher. "We want to be able to get these members back to work serving their community, but we can't do that on our own. It takes two to negotiate, and Clear Medical Imaging has refused to engage in these discussions, disrespecting these workers and the thousands of patients in need of their services."