Safety Safety Safety Data Sheets (SDS) Dynatemp R22 Dynatemp 134a HVAC & AUTO Dynatemp 404A Dynatemp 407A Dynatemp 407C Dynatemp 410A Dynatemp 421A Dynatemp 422B Dynatemp 422B+ Arkema 427A ComStar® RS-45 (R434A) ComStar® RS-44b (R453A) FluoroFusion R-290 FluoroFusion R-600a