QuickAlloy SMD Gel Flux 30cc ml Syringe with Nozzle Made in USA 200C ~300C active temperature SMD Gel Flux in 3X 10 cc / ml . Syringe with Nozzle This SMD Gel Flux is also compatible with Lead Free / silver based solder which required Higher Temperature resistance, have excellent wettability at High Temperatures. Non-corrosive, non conductive, SMD Gel Flux SMD Gel Flux will not run all over PCB when applied Recommended to use with the CyberDoc Desoldering Alloy