Reviews : GCProducts 60/40 .050 Dia. Rosin Flux Core Solder .75oz (Cd) (Alpha) GC Products 60/40 .050 Dia. Rosin Flux Core Solder .75oz (Cd) (Alpha) Leave a Rating! ★ ★ ★ ★ ★ OR Write a Review! Write a Review Sort 5-Star: 0 (1 ratings) 4-Star: 0 (0 ratings) 3-Star: 1 (0 ratings) 2-Star: 0 (0 ratings) 1-Star: 0 (0 ratings) Reviews 60/40 .050 Dia. Rosin Flux Core Solder By: Harleykurt.KH (Bullhead City, Arizona) Solder melts too quickly. There is not enough time for the project to heat to flow temperature. (1)