5408 Approved! More Reliance Solvents are now approved under BAC 5408 for vapor degreasing: AeroTron-AV-5408 - Fluorinated (Non-PFAS) Material & AeroTron-GS-5408 - Fluorinated (Non-PFAS) Material. These join our EnTron-Aero Brominated solvent which has been 5408 approved since 2011.