The Easy-to-use Liquid Flux which is no rot,in line with AWS/ANSIA5.31 standards. The Easy-to-use Liquid Flux which is no rot,in line with AWS/ANSIA5.31 standards.In 900~1200°C for brazing carbon steel,copper and copper alloy.The packing ofthe Easy-to-use liquid flux as follow:4L/pail ,20L/pail.The Praiseworthy Liquid Flux is spoken highly by the customer all the way!