Supplier firm Philips Products will permanently close its strike-idled Rancho Cucamonga, Calif., plant on Sept. 9, according to the Press-Enterprise newspaper of Riverside, Calif.

About 180 Philips employees belonging to Teamsters union Local 848 have been on strike since May 14.

The Rancho Cucamonga facility makes vinyl and aluminum doors and windows for RVs, manufactured homes and conventional site-built homes.

The union members, who were paid an average of $9 an hour, wanted a pay raise of 50 to 60 cents an hour. Philips, a unit of Tomkins PLC for Great Britain, was offering 35 cents an hour, according to the Press-Enterprise.

Employees also were paying for 25% of their health insurance premiums and the Teamsters wanted Philips to pay the full cost of the union members’ health insurance.

After the Rancho Cucamonga plant closes, Philips will continue to operate a doors and windows plant in Slayton, Ore., but several Southern California firms interviewed by the Press-Enterprise said they will look to Southern California suppliers instead of ordering from the Philips plant in Oregon.