Not a government sitenlrb.fyi is an independent project. It is not affiliated with, endorsed by, or operated by the National Labor Relations Board or any government agency. The Board's own site is at
nlrb.gov.
Sierracin/Sylmar Corporation d/b/a PPG Aerospace
3 cases in this site's copy of the record · 0 of those 3 are marked open by the Board · Region 31 · Sylmar, CA
Each case links to the Board's own docket page. This site holds what the Board listed, not the documents.
The cases
Petition filed by an employer
RMIncluded: All full-time production employees, quality employees, maintenance employees, shipping and receiving employees, and lead persons employed by the Employer at its facility located at 12780 San Fernando Road, Sylmar, California. Excluded: All office clerical employees, plant clerical employees, GAMT employees, lab technicians, staffing agency employees, temporary agency employees, professional employees, ...
Petition for an election
RCIncluded: All full time and part time production employees. Excluded: All other employees including professional employees, managerial employees, guards, supervisors, and other employees as defined by the Act.
Petition for an election
RCIncluded: All full time and part time production employees. Excluded: Maintenance, shipping & receiving and all other employees, guards, and supervisors as defined in the Act.
Last refreshed 19 September 2026. What is in it, and what is not.
The Labor Board FYI is independent, and is not the Board or any government agency. Where a number here disagrees with the Board's, the Board is right: tell us at [email protected]. If a name here is a private person and not a business or a union, write to the same address and it comes off. Where this comes from.