Soldering steel is easy using flux and a hot soldering iron.
Flux for soldering sheet metal.
This galvanizing flux comes in a 1 gallon pail.
Shop all solder types.
Johnson s j 33 galvanized flux is the superior choice for soldering sheet metal seams.
This flux for soldering galvanized steel is an active chloride formulation with more strength than just plain muriatic acid.
First clean the surface with emery cloth and or brushing with undiluted hydrochloric acid.
Whether you are soldering on a job site or in the shop we have the best sheet metal soldering supplies and tools for you.
Then wet area with zinc chloride flux you can make your own by dissolving some zinc metal into hydrochloric acid until it stops effervescing.
This guide will help you identify the types of solder available as well as the right flux for soldering your project.
This product is designed for galvanized steel soldering but can also be used on copper.
In the roofing trade the most common makeup of solder will be a mixture of tin and lead.
In the soldering process heat is applied to the copper joint where the pipe and fitting meet and the gap between the joint is filled with molten metal.
The 3 most common solders for roofing are listed below.
50sn 50pb tin lead solder 361 421 f working range.
A selection of stainless steel flux galvanized steel flux flux for ornamental copper work and sal ammoniac blocks are also found in soldering supplies.