TE Connectivity SOLISTRAND Closed Barrel Parallel Splices SOLISTRAND closed barrel parallel splices designed to terminate solid and stranded wire and irregular shaped conductors. These SOLISTRAND closed barrel parallel splices are made from fine grade high conductivity copper with tin plating and have closed barrels with brazed seams that create a uniform metal strength around the barrel. The inner surface of the barrels of these SOLISTRAND parallel splices are either dimpled or serrated for maximum tensile strength and to maximise the electrical contact area after crimping