Solder & Flux

Stop leaks, fix wiring or sweat fittings without fighting oxides. We stock solders and fluxes that wet fast and bond strong: rosin core and rosin flux for clean electrical joints, acid core and gelled or liquid flux for plumbing, radiators, sheet metal and mixed metals. Grab solid wire when you need more fill, paste for quick, even flow.

22 results

Rosin Core Solder

Acid Core Silver Solder

Lead Free Solder

Acid Core Solder

1/16 Aluminum Solder

Lead Free Instant Plumbing Solder

Rosin Soldering Flux

Liquid Soldering Flux

Gelled Flux

Rosin Core Solder

Rosin core solder for electrical and general tinning applications. Lead-based alloys in 60/40 and 40/60 ratios with rosin flux core that actively cleans and promotes quick wetting, providing reliable conductivity and improved joint strength for wiring and small repairs.

Weight	Tin and Lead Content	Diameter	Material	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
0.5 oz.	60/40	0.032"	Lead	1	83400	Log in to view price
60/40 Rosin Core Solder, 1/32" - 0.5 oz. Item #: 83400 Package Weight: 0.1 lbs View Product Details Log in to Order
0.75 oz.	60/40	0.05"	Lead	1	83402	Log in to view price
60/40 Rosin Core Solder, 1/20" - 0.75 oz. Item #: 83402 Package Weight: 0.1 lbs View Product Details Log in to Order
0.9 oz.	40/60	0.062"	Lead	1	83405	Log in to view price
40/60 Rosin Core Solder, 1/16" - 0.9 oz. Item #: 83405 Package Weight: 0.1 lbs View Product Details Log in to Order
0.25 lbs	60/40	0.062"	Lead	1	83403	Log in to view price
60/40 Rosin Core Solder, 1/16" - 0.25 lbs Item #: 83403 Package Weight: 0.3 lbs View Product Details Log in to Order
1 lbs	40/60	0.093"	Lead	1	83406	Log in to view price
40/60 Rosin Core Solder, 3/32" - 1 lbs Item #: 83406 Package Weight: 1.1 lbs View Product Details Log in to Order
1 lbs	60/40	0.032"	Lead	1	83401	Log in to view price
60/40 Rosin Core Solder, 1/32" - 1 lbs Item #: 83401 Package Weight: 1 lbs View Product Details Log in to Order
1 lbs	60/40	0.062"	Lead	1	83404	Log in to view price
60/40 Rosin Core Solder, 1/16" - 1 lbs Item #: 83404 Package Weight: 1.1 lbs View Product Details Log in to Order

Acid Core Silver Solder

Acid core silver solder for general-purpose brazing and repair tasks. Silver material with an acid flux core that cuts through tarnish and oxides but leaves residues so not suitable for electrical work. Tensile strength about 20,000 psi and max temp 430 °F.

Weight	Diameter	Material	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
1.1 oz.	0.062"	Silver	1	83421	Log in to view price
1/16" Acid Core Silver Solder - 1.1 oz. Item #: 83421 Package Weight: 0.1 lbs View Product Details Log in to Order
1 lbs	0.062"	Silver	1	83422	Log in to view price
1/16" Acid Core Silver Solder - 1 lbs Item #: 83422 Package Weight: 1.1 lbs View Product Details Log in to Order
1 lbs	0.125"	Silver	1	83423	Log in to view price
1/8" Acid Core Silver Solder - 1 lbs Item #: 83423 Package Weight: 1.2 lbs View Product Details Log in to Order

Lead Free Solder

Lead free solder in rosin or acid core options for electrical and general-purpose work. Copper alloy construction with low melting range provides good tensile strength and quick wetting. Rosin core resists corrosion on electrical joints and acid core cleans heavy tarnish.

Weight	Diameter	Material	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
0.5 oz.	0.062"	Copper Alloy	1	83412	Log in to view price
1/16" Lead Free Rosin Core Solder - 0.5 oz. Item #: 83412 Package Weight: 0.1 lbs View Product Details Log in to Order
0.5 lbs	0.062"	Copper Alloy	1	83413	Log in to view price
1/16" Lead Free Rosin Core Solder - 0.5 lbs Item #: 83413 Package Weight: 0.5 lbs View Product Details Log in to Order
0.5 lbs	0.125"	Copper Alloy	1	83415	Log in to view price
1/8" Lead Free Acid Core Solder - 0.5 lbs Item #: 83415 Package Weight: 0.5 lbs View Product Details Log in to Order
1 lbs	0.093"	Copper Alloy	1	83414	Log in to view price
3/32" Lead Free Rosin Core Solder - 1 lbs Item #: 83414 Package Weight: 1.1 lbs View Product Details Log in to Order
1 lbs	0.125"	Copper Alloy	1	83418	Log in to view price
1/8" Lead Free Solid Wire Solder - 1 lbs Item #: 83418 Package Weight: 1 lbs View Product Details Log in to Order

Acid Core Solder

Acid core solder for non-electrical use made from 40/60 tin-lead alloy. Available in two diameters with a highly active acid core that bonds a wide range of metals and improves wetting. Suited for repairs to tools, tubing, radiators, sheet metal and automotive work.

Diameter	Material	Minimum Operating Temperature	Maximum Operating Temperature	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
0.062"	Lead	361 °F	460 °F	1	83408	Log in to view price
40/60 Acid Core Solder, 1/16" - 0.9 oz. Item #: 83408 Package Weight: 0.1 lbs View Product Details Log in to Order
0.125"	Lead	361 °F	460 °F	1	83409	Log in to view price
40/60 Acid Core Solder, 1/8" - 1 lbs Item #: 83409 Package Weight: 1.1 lbs View Product Details Log in to Order

1/16 Aluminum Solder

Solid aluminum solder wire in 0.062" diameter for joining dissimilar metals including anodized aluminum. Low 500 °F bonding temperature provides low-heat joining and 20,000 psi tensile strength helps create durable repairs for refrigeration, radiators and cooling systems.

Name	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
1/16" Aluminum Solder - 1 lbs	1	83410	Log in to view price
1/16" Aluminum Solder - 1 lbs Item #: 83410 Package Weight: 1.1 lbs View Product Details Log in to Order

Lead Free Instant Plumbing Solder

Lead free instant plumbing solder is a silver-bearing alloy paste blended with acid flux for plumbing joints and sweat fittings. It melts at 430 °F and provides easy application by spreading the cream and applying heat. Suitable for copper, brass, steel and galvanized iron. Made in the U.S.A.

Name	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
Lead Free Instant Plumbing Solder	1	83417	Log in to view price
Lead Free Instant Plumbing Solder Item #: 83417 Package Weight: 0.4 lbs View Product Details Log in to Order

Rosin Soldering Flux

Rosin soldering flux cleans and prevents oxidation to improve solder wetting and create stronger, longer lasting connections. Contains no zinc chloride or ammonium chloride and leaves a corrosion-resistant protective coating.

Volume	Material	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
2 oz.	Rosin	1	83419	Log in to view price
Rosin Soldering Flux Item #: 83419 Package Weight: 0.1 lbs View Product Details Log in to Order

Liquid Soldering Flux

Liquid soldering flux for cleaning surfaces and preventing oxide buildup on aluminum alloys and dissimilar metals. High-performance formulation helps improve wettability and joint reliability.

Name	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
Liquid Soldering Flux	1	83399	Log in to view price
Liquid Soldering Flux Item #: 83399 Package Weight: 0.8 lbs View Product Details Log in to Order

Gelled Flux

Gelled flux for soldering that is water soluble and formulated for use with solid wire solders or when extra flux is needed. It contains no zinc chloride and provides superior cleaning for easier soldering and stronger bonds, intended for non-electrical applications.