40/60 Tin Solder

40/60 tin solder is an ASTM B32 Sn40 tin-lead alloy for general industrial soft soldering. It is used in bodywork, gutters, galvanized sheet, radiators, copper or brass accessories and workshop jobs where better fluidity than 30/70 is required, while still leaving room for manual joint control. It is a highly requested reference for buyers who need a balance of cost, wetting and ease of application with a torch or industrial soldering iron. It differs from 50/50 because it keeps a higher lead proportion and a more pasty behavior; and from 30/70 because it wets better and supports more continuous beads. Since it is tin-lead, it is not the selection for potable water, food or lead-free specifications.

Selection guide

• Choose 40/60 for general maintenance, sheet, gutters and radiator repair.
• Use 30/70 if more filling and shaping capacity is required.
• Use 50/50 if higher tin content and better wetting are required for non-potable work.
• For sanitary applications, request lead-free alternatives according to the specification.

Use recommendations

• Prepare the surface with mechanical or chemical cleaning before soldering.
• Select flux compatible with the base metal and remove excess after the work.
• Avoid overheating thin sheet to prevent assembly distortion.
• Test the joint after cooling if working on radiators or container repair.

SoldaForce handles orders for 40/60 solder for contractors, maintenance workshops and industrial purchasing. We dispatch to Bogotá, Medellín, Cali, Barranquilla and all of Colombia. Request a quote via WhatsApp with quantity and required packaging.