Eletronic Grade No Clean Flux Paste, 10 cc ml Syringe tacky QuickAlloy CyberDoc LLC USA 200C ~300C active temperatureSMD Gel Flux in 10 cc / ml . Syringe with Nozzle This 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 Tacky paste flux will not run all over PCB when applied high quality SMD flux made in USA