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Soldering Flux

Soldering Flux

Apply flux to metal surfaces before soldering them to remove residues that can prevent the solder from adhering to the surface and to prevent the surface from oxidizing as it's heated.

Liquid

The standard choice, liquid flux applies quickly and is easier to clean up than paste flux.

Bottle

Drip-Top Bottle

Spray Bottle

Pen

Paste

Thick paste flux doesn't evaporate as quickly as liquid flux and stays in place when applied, making it well suited for soldering 3-D forms. Apply the paste sparingly to avoid spitting and popping, which can leave pits in solder seams.

Bottle

Tin Can

Tub