A pay row at engineering firm John Crane in Slough has escalated after 40 workers voted to take more strike action.
The Unite members have already walked out on four dates in April and two in May, after turning down a 3% pay rise.
This was the first time Unite members had taken strike action at the factory.
The workforce now plans to strike from 27th to 31st May, and again on 5th and 11th June.
Sharon Graham, general secretary at Unite, said: “John Crane’s loyal workforce have not only endured years of below-inflation pay rises, but are now being unfairly ignored by management, so it is little wonder they have voted to escalate the strike.
“John Crane is a profitable company that can clearly afford to pay its workers more. Our members have the full support of Unite throughout this dispute.”
Malcolm Bonnett, regional officer at Unite, said: “Despite delays to production and supply chain disruption from our strike action, John Crane management are burying their heads in the sand and refusing to negotiate.
“The members are sick and tired of receiving crummy pay rises while management reward themselves.
“Workers deserve better. Unite will not back down until John Crane comes back to the table with a fair pay offer.”
Workplace Journal has reached out to John Crane for comment.